1.用户输入

username = input("username:")

password = input("password:")

print(username,password)

2.用户输入三种格式化方法

（1）用“+”链接，会开辟多个空间（不推荐）

name = input("name:")

age = input("age:")

job = input("job:")

salary = input("salary:")

info = '''

----------------info of name '''+name+''''------------------

name:'''+name+'''

age:'''+age+'''

job:'''+job+'''

salary:'''+salary

print(info)

（2）采用占位符

name = input("name:")

age = input("age:")

job = input("job:")

salary = input("salary:")

info = '''

----------------info of name %s------------------

name:%s

age:%s

job:%s

salary:%s

'''%(name,name,age,job,salary)

print(info)

（3）用“{名称}”链接，清晰（推荐）

name = input("name:")

age = input("age:")

job = input("job:")

salary = input("salary:")

info = '''

----------------info of name {_name}------------------

name:{_name}

age:{_age}

job:{_job}

salary:{_salary}

'''.format(_name=name,

           _age=age,

           _job=job,

           _salary=salary)

print(info)