print('%2d-%02d' % (3, 15)) print('%.5f' % 3.1415926)没看明白

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#1 Created at ... [Delete] [Delete and Lock User]

print('%2d-%02d' % (3, 15)) print('%.5f' % 3.1415926)

#2 Created at ... [Delete] [Delete and Lock User]

求解答

#3 Created at ... [Delete] [Delete and Lock User]

%2d表示输出宽度为2的数字（右对齐） print('%2d' % 3) 输出 3 3左边有个空格

%02d表示宽度至少为2的数字，太短了用0来凑数 print('%02d' % 3)输出03

%.2d表示输出至少2位有效数字 print('%.2d' % 3)输出03

#4 Created at ... [Delete] [Delete and Lock User]

谢谢啦 ..