python的选择语句是什么语句

if语句    格式:        if 表达式:            语句块(执行代码)

if...else语句    格式:        if 表达式:            语句块        else:            语句块

 if...elif...else多分支语句    格式:        if 表达式1:            语句块1        elif 表达式2:            语句块2        elif 表达式3:            语句块3        ...        else:            语句块n

# if 实例print("今有物不知其数,三三数之剩二,五五数之剩三,七七数之剩二,问几何?")num = int(input("请输入你认为符合条件的数字:"))if (num % 3 == 2) and (num % 5 == 3) and (num % 7 == 2):    print(num,"符合三三数之剩二,五五数之剩三,七七数之剩二")# if...else 实例print("今有物不知其数,三三数之剩二,五五数之剩三,七七数之剩二,问几何?")num = int(input("请输入你认为符合条件的数字:"))if (num % 3 == 2) and (num % 5 == 3) and (num % 7 == 2):    print(num,"符合三三数之剩二,五五数之剩三,七七数之剩二")else:    print(num,"不符合!")