Insert mode

Recall the last lesson

• We summarized the way of mode switching

  • Command modeNormal mode
  • Baseline command line modeCommand mode

• How to open the help file correctly

  • :h

• Using the mouse in a document

  • set mouse=a
  • It is recommended not to use the mouse

• Use full keyboard to jump in and out hyperlinks

  • ctrl+]
  • ctrl+o

• Two manuals for help files

  • User help manual
  • Reference help manual
• This time, let’s insert the content and modify the document

Insert mode

If you want to insert content, you should enter the insert mode(Insert mode)

• First, let’s open the last oneoeasy.txt

ls -l . > oeasy.txt
vi oeasy.txt

• Then how to enter the insert mode?
• We use:help insertSee if there are any orders

• We need to exit help mode first

  • :q
• Then pressiEnter insert mode

• After entering insertion mode

  • lower left quarterThe status bar displays--Insert--
  • This means that you have entered insertion mode
  • Always pay attention to the lower left corner
  • The lower left corner is like a small map
  • It is where the overall situation is managed

• If you don’t enter insert mode

  • Maybe it’s because I’m in the new help
  • before:qExit help

Insert text

• In insert mode, we can type at will
• The key is no longer a command, but a character
• You can type a colon when you enter

• What if you want to move the position after input?

  • escReturn to command modeNormal mode
  • perhapsctrl+cReturn to command modeNormal mode
  • Try to choosectrl+cBecause you can keep your hands in the right position
  • Right little fingerctrl+Right index fingerc

• Note that after returning to command mode

  • The status bar in the lower left corner is no longer displayed--Insert--
  • Instead, it goes back to blank
• Observe the lower left corner
• Always pay attention

Document details

• Note that where there is content, it is the specific text content
• Where there is no content
• There will betilder(~)Prompt
• tilder(~)It means nothing, just nothing

useiCommand to enter insert mode

• PressiEnter the insertion mode again
• Pressescorctrl+cReturn to command mode

• Can useiandctrl+cSwitch mode repeatedly
• Observe the lower left corner

Help details

• iWhat exactly does that mean?
• sure:hGive him a minute
• :h inamelyhelponceiWhat exactly does the order do

• thatctrl+cWhat do you mean?

Query shortcut

• What won’t:hwhat
• :h ctrl-cJust help us find itctrl-cWhat do shortcuts do

• Similarly, there are:h ctrl-g

• CTRL+GCorresponding to:f[ile]command
• You can view the current file information

Try to exit

• input:qWish to quit
• But the screen is shown below

• Input according to his requirements:q!
• cat oeasy.txtThe display file has not been modified
• original:q!Force quit without saving
• Embarrassing, although it hasn’t been saved successfully
• But it was really inserted!
• Let’s summarize first

summary

• This time we are in insert mode
• Using commands in normal modei
• Use in insert modeescReturn to normal mode
• use:!qDo not force exit
• Hey ~ it seems that we can only save it next time
• We’ll talk about it next time!