str.format（） - >如何左對齊

Question

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

會是什麼代碼，使輸出成爲：

there are 100  students and 20   teachers 

感謝。

Answer 1

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

雖然老%操作員使用-進行調準，新format方法使用<和>