str.format() - >如何左对齐

Question

>>> print 'there are {0:10} students and {1:10} teachers'.format(scnt, tcnt)
there are        100 students and         20 teachers

什么是代码,以便输出成为:

there are 100        students and 20         teachers

谢谢.

Answer 1

print 'there are {0:<10} students and {1:<10} teachers'.format(scnt, tcnt)

当旧%操作符-用于对齐时,新format方法使用<和>