10lession-if-else条件语句
python的条件选择语句跟其他语言的及其相似,这里就不做详细记录,仅仅是看个例子好了
#!/usr/bin/python if 1 in [1,2,3,"4"]: print('1 in [1,2,3,"4"]') elif 2 in [1,2,3,"4"]: print('2 in [1,2,3,"4"]') else: print("not number in") if not 1 in [2,3,4]: print('1 not in [1,2,3]') else: print('1 in [1,2,3]')
结果
1 in [1,2,3,"4"] 1 not in [1,2,3]
一个选择
if ****:
两个选择
if ****:
else:
多个选择
if ***:
elif***:
......
else: