Vim replacement command

Vim replacement character:
Syntax: [ADDR] S/source string/destination string/[Option]
Global replacement command: % S/source string/destination string/g
[ADDR] indicates the search range. If it is omitted, it indicates the current row.
For example, "1st" indicates the number of rows from to 20;
"%": Indicates the entire file, which is the same as "1, $ ";
"., $": From the current row to the end of the file;
S: indicates the replacement operation.
[Option]: indicates the operation type.
For example, G indicates global replacement;
C Indicates confirmation
P indicates that the replacement result is displayed row by row (CTRL + l restore the screen );
If option is omitted, only the first matching string in each line is replaced;
If special characters appear in the source string and target string, escape them "\"