1、python What numerical and sequence types are there ？
value type ： integer 、 floating-point 、 Boolean type 、 Plural
Sequence type ： list 、 Tuples 、 character string
2、linux Common commands
Toggle directory ：cd
establish ：touch
Copy ：cp
rename ：mv oldname newname
Move ：mv filename Pathname (/home/pyvip/)
Create folder ：mkdir
Delete folder ：rm -rf filename
vim operation ：
Create a file and enter ：vim filename
Edit mode ：a perhaps i Get into
home: Head of line end ： At the end of the line
i: Insert from the front of the cursor
I: Insert at the beginning of the current line
a: Insert from behind the cursor
A： Insert at end of current line
o: Add a new line under the line where the cursor is located
O： Insert
Command mode ：ESC Get into
gg: Go to the first line of the file
G： Go to the last line of the file (shift+g)
^: Non blank line beginning
Copy ：
yy: Copy the entire line
3yy: Copy 3 Row content
yw: Copy the current cursor to the end of the word
p： Paste
Delete ：
dd： Deletes the line where the cursor is located
dw: Delete a word
x： Delete cursor character
u: Undo last action
ctr+r: The previous step
Last row mode ： Save and exit ：wq q sign out q! Exit without saving
noh: Remove the color on the characters after searching
Search for ：
/： Search forward
？： Backward search
Replace ：
