python 左对齐，右对齐

python 左对齐，右对齐

https://www.cnblogs.com/fat39/p/7159881.html

>>> print('{} and {}'.format('hello','world'))  # 默认左对齐
hello and world
>>> print('{:10s} and {:>10s}'.format('hello','world'))  # 取10位左对齐，取10位右对齐
hello      and      world
>>> print('{:^10s} and {:^10s}'.format('hello','world'))  # 取10位中间对齐
  hello    and   world   
>>> print('{} is {:.2f}'.format(1.123,1.123))  # 取2位小数
1.123 is 1.12
>>> print('{0} is {0:>10.2f}'.format(1.123))  # 取2位小数，右对齐，取10位
1.123 is       1.12

>>> '{:<30}'.format('left aligned')  # 左对齐
'left aligned                  '
>>> '{:>30}'.format('right aligned')  # 右对齐
'                 right aligned'
>>> '{:^30}'.format('centered')  # 中间对齐
'           centered           '
>>> '{:*^30}'.format('centered')  # 使用“*”填充
'***********centered***********'
>>>'{:0=30}'.format(11)  # 还有“=”只能应用于数字，这种方法可用“>”代替
'000000000000000000000000000011'

左中右对齐及位数补齐