happyvim 课程素材

[happypeter]

• use ,, to open Ctrl-p and then Ctrl-v to get a split window，so useful!

[happypeter]

block comment/uncomment can not live withou

[happypeter]

https://code.tutsplus.com/courses/venture-into-vim

[happypeter]

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hello everybody, this is Peter here

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and today let's start our study of vim

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the best editor that ever made

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so let's just start at the very beginning, and

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have a look at how to open a file with vim

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it's like this, so you type vim

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you see filename, then you just press enter

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and here we are

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so let's quit... quit

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just capital z, z, twice

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OK, let's quit vim, but of course that is not all you need to know

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not all the ways how you can open sth with vim

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you can also use this this way

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like vim, and "newfilename"

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I mean, vim will create a new file for you

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like this, and you can also type sth here

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I will show you how to edit a file in vim later

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so like any powerful unix tool,

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you can start vim with lots of options

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and you can check all the options this way

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the option I love is sth like this

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remote and a few others

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but that's not what we are going to talk in this episode

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we will talk about (them) later

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so I, I think, ahm...

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let's... why not stop here, and we'll check how to do things later.

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so have a good day, bye!

[happypeter]

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hello everybody

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um...this is Peter here... peter again

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so today we are going to explore more powerful stuff about ...

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about vim... the best editor that ever, you know ...created

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um ... so, let's start vim

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ah... we are going to create a new file named hello.c
and within this file

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now what I want to talk about here is when you start vim

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you directly come into the "normal mode"

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so, you may wonder what the normal mode means

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if you don't know normal mode means. Now I can tell you, it's just ...

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when you start vim, vim directly take(s) you to normal mode

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and now, you can try to type something, like 'd' and 'c'

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Ah, you type something but nothing happened

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So, you may feel strange here,

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but this is actual not bug of vim

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but rather it's a nice feature of vim.

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it means vim has something called "modes"

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so let's check how vim modes works

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you just type help, "h" stands for "help"

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help vim-modes, OK?

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so you can see there are many modes here... many modes

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but most ... now in this screencast I want to talk about really

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only two of those modes

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two most important one(s)

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one is normal mode, the other one is I think...

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insert mode, like this

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so when you first come into ah...

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into vim, ah... you first go into normal mode

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normal mode also is called command mode

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which means everything you type here will be considered as a command

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and like 'x' for deleting one word(shall be a character)

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and there are also some other commands that can take you into insert mode

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like the most often used one is 'i'

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press 'i', and vim will go into insert mode

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and you can see in the lower left corner of this screen

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you see a "insert"

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insert, that means vim is now in insert mode

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in insert mode, you can generally type something

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like "sss", whatever you type here

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will be considered as some visible characters, will show up eventually into your file

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ah... in your file created, but when you press "esc"

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you go back normal mode again

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now whatever you type here, as we already mentioned, will be considered as command(s)

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like you type 'x'

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then ah... you delete one word(shall be one character) rather than insert "x" into your file

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so that is the difference, as you type "dd", so "dd", whole line

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as you type 'u', it means undo

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you can type "ctrl + r", means redo

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anyway, don't worry if you can not remember all these things

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we will talk about these in details later

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anyway in this talk, I just want you know

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vim has modes and most important two modes I want you know

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here is just two

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normal mode and insert mode

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so, you still remember how to go into insert mode? you type 'i'

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and like this, you press "Esc" and you go back to normal mode

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normal mode is also called command mode

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which means you type everything as commands

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so this is all I want to talk about here

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I hope you are not confused, but anyway

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it doesn't matter. we will talk about more later

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so have a good day. bye

[happypeter]

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uh... good afternoon everybody

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one of the most obvious problems of my earlier screencasts is that

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is that... the way I talk. I generally think it feels boring

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to make screencasts and just talk to myself

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and later I found it was wrong

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and actually I should pretend you are just by my side and we talk like friends

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later screencasts made this way shall be better anyway

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and today ah... of course with no suprise

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we continue to talk about vim

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we start vim, and now we know vim has many modes

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help vim modes. and the most important ones

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of course, are normal mode

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and insert mode

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insert mode, this one yeah!

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insert mode, but today I'd like to talk more about why vim has these modes

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can we just go without modes?

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and the reason is like this

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usually in the most other editors you don't have modes

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you just work in one mode that is as it looks

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and we call it insert mode, like vim insert mode

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you always stay in insert mode

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then sometimes you need some shortcut to make you work more efficiently

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like you want delete one word

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maybe you press "ctrl+d" or "ctrl+w"

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and sometimes you need to do something more powerful

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and you need to use like "ctrl +command +s"

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and "ctrl +option +command+s" , something like these

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you can't avoid these, if you really want some more powerful shortcuts

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that's what is happening in some other editors all the time

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it can do your work, but the problem is you struggle to use your fingers

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and it feels really awful and it is not so efficient

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and that's the problem.

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that's why vim has its modes. and its normal mode is command mode

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like this command mode. in this way you can do things much much simpler

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and of course with price of have (having) different modes

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that's a good price to pay

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it's really rewarding. so no problem

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at least I like it so much

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and you can use "xx"

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and "dd" to delete one word(one line). you no longer need to struggle to your fingers

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uh... painfully, so that's why vim has modes

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and of course until now you still only need to know two modes

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insert mode and normal mode

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so that's why vim has many modes

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ok, let's call it a day. talk to you later. bye

[happypeter]

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ladies and gentlemen, boys and girls. now we are in vim

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so today I want to talk about a little bit

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why vim takes us first directly into normal mode

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uh..., the fact is that in the normal mode you can actually modify your stuff fair easily

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and efficiently. if you are in the insert mode, the movement,

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uh..., will be, will have to use arrow key or something like this

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it won't be so efficient. so in normal mode, everything can be done

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much much simpler. uh..., so and in the career of a programmer

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most of time will be spend on changing things rather than inserting things

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inserting words, that's why normal mode first

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so, now we are in normal mode

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let's see how to move around in the normal mode

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and first let's check the help file "help motion.txt"

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uh..., if you want detailed information about how to move around

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and also something about operators which we will talk about

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maybe later in our next talk. you can check the manual here

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but if everything can be found in the manual

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what's the point of our screencasts?

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our screencast is made so as to you don't need to read all the stuff in the manual

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because in the manual there will be lot of details that... ah... peter wants you to learn later

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not now. some of the details are really important

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but i think it for beginners it is better to leave them alone

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so you just need to follow peter and check out the basic stuffs and

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build up your knowledge base step by step

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later you will get to know all the basic things. you can say

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" em... how can i do things a little bit more efficiently "

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then you can check the manual and get all the powerful stuff out of it

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so, let's talk about motion, let's talk about how to move around in vim

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so as you can see, uh... we can move left

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this way, move right. this way, move up

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sorry, move down, move up, it's just 'h', 'j', 'k' , 'l'

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and this is the basic movement and can we just move one word

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a time just type 'wwww'

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can we just move, uh..., the other way, like move half a page down

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use "ctrl +d ", I think. I don't use "ctrl +d " very often

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because I just love to move line by line

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every time if you use "ctrl + d" and move inside big file, i got confused

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I lost my track. en, that's not so good

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uh..., how you move inside big files

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let's make a big file. you don't need to know what I'm doing here

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I am just making a big file

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how can we move very quickly inside a big file

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I use search. It's maybe called "moving by searching"

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you do it this way. if I want move somewhere where I can find another main

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uh..., I can do it this way

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type "main", then press "enter", and now "nnn"

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so, usually if I want to move inside big files

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I do this way rather than just type "ctrl + d"

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for moving down half page. and "ctrl +u " for moving up half page also

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I don't use them very often

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so, that's the basic movement

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and..., so let's stop here. and talk to you later, bye

[happypeter]

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hi, you, good afternoon. so, now, I am not feeling very uh... very great

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uh... since I have a little bit stomachache

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uh... my stomach hurts a bit. it's OK, not so horrible

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uh... you know, human beings are just animals

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except that we can think, we talk, we work

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uh..., so when our life get messy . I think at least for me it is true

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I tend to think about doing something that make some sense

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so it can probably set our heart peaceful and put us on the right track

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so, and doing technology is one of things do make me feel peaceful

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because technology is just something fun, it's no big deal, right?

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just like this, OK, so if you don't mind

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let's start, continue our study of vim

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OK, let's see what we can do, let's start vim

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check what's in this

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uh... it's bullshit, OK

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we don't need. OK, so, now let's create a new file

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we don't always create '.c' file, we can create any file

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OK, and maybe we type something, go to insert mode and type something

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I'm sure you now know how to go to insert mode

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and maybe you already read the help file and

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you know the difference between switching among those modes, normal mode and insert mode

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and a bit more, other modes

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so, today I want to talk about is still motions

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motions, how to move around

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let's say, we have "hello world"

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and how to, you know how to move to the beginning of this line

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it's zero. and end, dollar. zero, dollar

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zero, I'm sorry. uh... so, you know how to move one word a time. "ww" and

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now, guess how to move two words a time. it's '2w'

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I'm sorry, it's not clear

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it's like this. "hello world peter is your friend", move to the beginning , it's three 'w'

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'3w' and maybe '2w', like this

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and now guess how to move two lines down one time

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in one go, it's just,

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we go to the... first go to the top of this file

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done by "gg", and two 'j'

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two 'j', it's "gg"

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two 'j' and "gg", three 'j' and it's like this

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now, you can see it's just a number with a motion, and that will just do

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what you want in a very obvious and maybe a little bit childish way

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and it's the motion

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uh... but what I want talk about here is the general rule of vim operation

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it's one operator and then followed with a motion

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let's check the general rule. first you don't know what the operator is maybe

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so let's check what operator is, let's check maybe help operators, I'm not sure

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help operators, help operator, OK I think we are luck

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operators are some things like change, like 'c', change a word

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like "d", delete a word, "yank",something like copy

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yank means copy, and lots of other more

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those are... I think those are operators, but currently we focus on something simple

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like change and delete

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uh... let's show how to work using operators and motions the same time. OK

53
00:05:27,512 --> 00:05:36,573
like, let's try to delete two words. in one go, it is 'd' two 'w'. OK

54
00:05:36,823 --> 00:05:42,750
uh... undo this thing. 'd' three word

55
00:05:40,573 --> 00:05:52,804
OK, and how can we delete from this line to the end of this file

56
00:05:53,054 --> 00:05:58,237
'd' then the motion 'G' to the end of file

57
00:05:58,487 --> 00:06:00,258
yeah, easy, yeah

58
00:06:00,508 --> 00:06:05,436
it's how to delete from this line to top of this file. 'd' and "gg"

59
00:06:05,686 --> 00:06:13,214
OK, so let's try d (delete) four word

60
00:06:13,464 --> 00:06:24,940
OK, I think you can see the rules, very, it's very childish, but it is very convenient.

61
00:06:25,190 --> 00:06:29,979
so, let's see how to delete two lines. let's go up, go up

62
00:06:30,229 --> 00:06:34,879
delete two lines, 'd' two 'j', two lines

63
00:06:35,129 --> 00:06:42,889
like three lines, anyway, it's 'd' two 'j', like this

64
00:06:43,139 --> 00:06:49,693
so, if you want know more, if peter here is not giving you very clear explanation

65
00:06:49,943 --> 00:06:58,656
you can check more in documentation yourself. it's like help motions. motions, I think

66
00:06:58,906 --> 00:07:09,523
motions dot txt, you can get things here. how to move around and how to use operators with motions

67
00:07:09,773 --> 00:07:21,783
uh... you know what I mean by talking about motions, motions, we can check motions

68
00:07:22,033 --> 00:07:31,349
characters motions

69
00:07:31,599 --> 00:07:36,133
uh... it doesn't so matter. but uh...

70
00:07:36,383 --> 00:07:55,243
OK, anyway you can get anything here, like what's operator, operator, it's not so easy to get operator

71
00:07:55,493 --> 00:08:00,560
you can get this way. operator... motions and operators.

72
00:08:00,810 --> 00:08:02,580
you can check this part

73
00:08:02,830 --> 00:08:14,562
this part for more information. so that's the general rule of vim

74
00:08:14,812 --> 00:08:23,153
uh... how to use vim in this normal mode. the general rule is one operator then followed with some motion

75
00:08:18,562 --> 00:08:27,820
command, motion commands can be multiplied by numbers

76
00:08:28,070 --> 00:08:33,904
three 'w' like two 'w'. it's like this, like this

77
00:08:34,154 --> 00:08:39,546
like, now I want to change three words. 'c' three 'w'

78
00:08:39,796 --> 00:08:47,000
you see, then we type something new. "hello", then press "Esc"

79
00:08:47,250 --> 00:08:51,946
then you see three words changed into one word, in this way

80
00:08:52,196 --> 00:08:59,585
anyway, still the same thing, change words, like this "hello", OK

81
00:08:59,835 --> 00:09:01,838
easy, uh?

82
00:09:02,088 --> 00:09:10,545
those general rule of vim, of course you can use those many many different ways, because there are

83
00:09:10,795 --> 00:09:19,508
still other more operators and other more motions, check help file and enjoy the power. so

84
00:09:19,758 --> 00:09:25,104
anyway, OK. let's call it today. my stomach still hurts.

85
00:09:25,354 --> 00:09:34,485
uh... but I've done something meaningful and I feel my life is meaningful. OK

86
00:09:34,735 --> 00:09:39,106
OK, stop talking all these nonsense. have a good day.

87
00:09:39,356 --> 00:09:42,856
talk to you later

[happypeter]

1
00:00:00,000 --> 00:00:02,647
hi, hi, peter again

2
00:00:02,897 --> 00:00:10,937
in our earlier talk we mentioned operators and motions

3
00:00:11,187 --> 00:00:20,503
and how can we use both of them to constitute, uh... construct a whole vim command

4
00:00:20,753 --> 00:00:23,963
are you still remembering general rules?

5
00:00:24,213 --> 00:00:27,051
uh... let's say "hello world", something like this

6
00:00:27,301 --> 00:00:34,366
you have, first type one operator, then a number, then motion

7
00:00:34,616 --> 00:00:40,472
it's something like this. like "dj", anything like this

8
00:00:40,722 --> 00:00:50,736
uh... we talk about that, but we didn't cover enough of those motions and operators

9
00:00:50,986 --> 00:00:59,234
of course not all of those operators, and all of them, uh... there are hundred of them

10
00:00:59,484 --> 00:01:05,666
maybe not hundred of them, but certainly lots of them

11
00:01:05,916 --> 00:01:08,545
we don't need to remember all of them, but there are still,

12
00:01:08,795 --> 00:01:13,956
maybe a few of them that are really really useful.

13
00:01:14,206 --> 00:01:19,552
so that I really need to talk about in our screencast

14
00:01:19,802 --> 00:01:25,449
just now, I just think about that how to do this screencast

15
00:01:25,699 --> 00:01:36,456
I certainly believe it will be really boring to just talk about operators and motions

16
00:01:36,706 --> 00:01:42,679
in a plain way, I just type one by one, it will be really boring

17
00:01:42,929 --> 00:01:48,484
like 'w', like 'jj' like 'j', something like this it will be boring

18
00:01:48,734 --> 00:02:02,694
so, but suddenly a good idea come to me, and I need to, I think I would rather to talk, give this screencast a topic

19
00:02:02,944 --> 00:02:09,080
it's something uh... stupid. uh... named big and small

20
00:02:09,330 --> 00:02:15,605
big and small, maybe you don't know what big and small means

21
00:02:15,855 --> 00:02:24,103
here, I want to say, just I will talk about 'O', I talk about 'o'

22
00:02:24,353 --> 00:02:27,377
it's lowercase 'o' and capital 'O'

23
00:02:27,627 --> 00:02:30,233
so we just call it small 'o' and big 'O'

24
00:02:30,483 --> 00:02:40,194
and, small 'y' and big 'Y', small 'p' and big 'P', small 'i' and big 'I'

25
00:02:40,444 --> 00:02:48,252
so, uh... I'm Chinese, in China, we always talk about lowercase as something small

26
00:02:48,502 --> 00:02:52,083
and the uppercase as something big

27
00:02:52,333 --> 00:02:56,565
uh... I am not sure the native speakers talk this way

28
00:02:56,815 --> 00:03:01,626
uh... anyway I don't care

29
00:03:01,876 --> 00:03:06,758
so, but anyway why they arep so important, let me show you

30
00:03:07,008 --> 00:03:13,144
so, first let's talk about how to go into insert mode from normal mode

31
00:03:13,394 --> 00:03:16,603
it's the most often used one is 'i'

32
00:03:16,853 --> 00:03:22,989
but, you know what is big 'I', it's like this, you type uh...

33
00:03:23,239 --> 00:03:28,120
small 'i' and you are in insert right before the cursor

34
00:03:28,370 --> 00:03:36,271
and if you type big 'I', then you start your insert at the beginning of the line

35
00:03:36,521 --> 00:03:38,384
this is really useful

36
00:03:38,634 --> 00:03:45,489
and another useful one is, you type 'a' and the small 'a'

37
00:03:45,739 --> 00:03:48,949
uh... you can insert right after the cursor position

38
00:03:49,199 --> 00:03:53,802
and if you want to start editing at the end of this line

39
00:03:54,052 --> 00:03:55,613
you just type big 'A'

40
00:03:55,623 --> 00:04:00,164
it's like this the small 'a' and big 'A'

41
00:04:00,414 --> 00:04:12,145
uh... OK, small 'a' and big 'A'. OK, now what small 'o' and big 'O' means?

42
00:04:12,395 --> 00:04:24,150
small 'o' means this, you open, you go from normal mode to insert mode, but you open a new line

43
00:04:24,400 --> 00:04:30,234
and this start editing. what big 'O' means? it's like this. you type big 'O' and

44
00:04:30,484 --> 00:04:35,319
you also go to insert mode but you start a new line above the cursor position

45
00:04:35,569 --> 00:04:47,579
so that's the difference. then uh... one common editing task is that you need to copy and paste

46
00:04:47,829 --> 00:04:53,547
uh... in vim you don't call it copy, you call it yank, "yank", yank

47
00:04:53,797 --> 00:05:04,483
uh... maybe you don't know what "yank" means, you can help, try help 'y', like this

48
00:05:04,733 --> 00:05:11,681
and also if you don't know any of those big and small bullshit

49
00:05:11,931 --> 00:05:17,138
you can just help, help 'p', like this

50
00:05:17,388 --> 00:05:19,530
and of course, you get a big 'P' here

51
00:05:19,780 --> 00:05:25,149
and you can also check, maybe help 'w'

52
00:05:25,399 --> 00:05:27,912
you also have small 'w' and big 'W'

53
00:05:28,162 --> 00:05:32,579
that's different words, big word and small word

54
00:05:32,829 --> 00:05:38,222
and they are different. you can check help file for more information

55
00:05:38,472 --> 00:05:49,321
and anything you know vim help system is really powerful, you generally can find anything in the help system

56
00:05:49,571 --> 00:06:00,049
but we are not going show you all of them in our screencast... time is limited. so

57
00:06:00,299 --> 00:06:10,126
let's continue. maybe I think, I need talk about yank a paste. OK, how to yank a line

58
00:06:10,238 --> 00:06:18,067
it's like this. 'y', OK, now this line is in one of those special buffer

59
00:06:18,317 --> 00:06:26,357
then I can type, put. it's not paste, it's like paste, but it's not paste

60
00:06:26,607 --> 00:06:34,948
we call it put, then it's small 'p'. I'm sorry

61
00:06:35,198 --> 00:06:39,662
you find to yank the whole line, you need to type 'yy'

62
00:06:39,912 --> 00:06:43,377
and if you want to put, you type 'p'

63
00:06:43,627 --> 00:06:52,711
and let's try again, you have, you have 'yy' here, now 'p'

64
00:06:52,961 --> 00:06:57,263
you type 'p', then you put something below the current line

65
00:06:57,513 --> 00:07:03,369
and, but if you type big 'P', you put something above the current line

66
00:07:03,619 --> 00:07:05,622
so that's the difference

67
00:07:05,872 --> 00:07:10,498
and yeah that's big and small

68
00:07:10,748 --> 00:07:17,905
cut and paste, big and small, and anything

69
00:07:18,155 --> 00:07:26,404
OK, that's my stupid idea of giving such name big and small

70
00:07:26,654 --> 00:07:31,582
of this screencast to make things maybe a little more funny

71
00:07:31,832 --> 00:07:34,577
uh... maybe it's not funny at all

72
00:07:34,827 --> 00:07:41,311
but, OK that's all i want to talk about. so, enjoy, bye