python 字符串对齐和填充

text = 'Hello World' text.ljust(20) 'Hello World ' text.rjust(20) ' Hello World' text.center(20) ' Hello World '

text.rjust(20,'=') '=========Hello World' text.center(20,'*') '****Hello World*****'

或者format

format(text, '>20') ' Hello World' format(text, '<20') 'Hello World ' format(text, '^20') ' Hello World '

format(text, '=>20s') '=========Hello World' format(text, '*^20s') '****Hello World*****'