a = 12345.123456789 print('출력: [{}], [{:f}], [{:15f}], [{:10.2f}], [{:20.10f}]'.format(a, a, a, a, a)) str_ ='Hello World' print('출력: [{}], [{:s}], [{:20}], [{:5}], [{:5}]'.format(str_ ,str_, str_, str_)) print('출력: [{}], [{:.5}], [{:10.5s}]'.format(str_, str_, str_)) a,b,c = 10,20,30 print