• 用户交互程序

name = input("name:")age = int(input("age:"))#intege整数salary = float(input("salary:"))#浮点型

• 格式化输出：

1. %s   %d    %f

name = input("name:")age = int(input("age:"))#intege整数salary = float(input("salary:"))#浮点型msg = '''---------info of %s--------------name:%sage%dsalary:%f'''%(name,name,age,salary)#里面的%s等对应个数需要与这里一致，按照顺序排列print(msg)

 

1. {}

name = input("name:")age = int(input("age:"))#intege整数salary = float(input("salary:"))#浮点型msg = '''---------info of {_name}--------------name:{_name}age:{_age}salary:{_salary}'''.format(_name = name,            _age = age,            __salary = salary)print(msg)

 

 

• 类型转换

type()显示对应类型，int：整型 　　str：字符　　float：浮点型

name = input("name:")age = int(input("age:"))#intege整数salary = float(input("salary:"))#浮点型print(type(name))print(type(age))print(type(salary))str(age)#转换为string字符类型print(type(age))