Python基础-用户交互程序

注释

当行注释：#被注释内容

多行注释：”””被注释内容””” （3个单引号或3个双引号）

例：

注释单行
#_username='zhang'        
_password='admin123'
username=input("username:")
password=input("passowrd:")

注释多行
'''
if _username==username and _password==password:
    print("Welcome user {name} login...".format(name=username))
else:
    print("Invalid username or password!")
'''

打印多行方法：

info = """
###############################
######Welcome to My Game#######
###############################
Try to guess the age of Oldboy?
"""
print (info)

用户交互输入：

#!/usr/bin/env python
#-*- coding:utf-8 -*-


name = input(“what is your name?”)
print (“Hello”+name)

username = input(“Username:”)
password = input(“Password:”)
print (username)
print (password)

输入密码时，如果想要不可见，需要利用getpass模块中的getpass方法，即：

#!/usr/bin/env python
#-*- coding:utf-8 -*-

import getpass             #调用getpass库
username = input(“Username:”)
password = getpass.getpass(“Password:”)
print (username)
print (password)

打印内容中加上变量值：

name = input(“name:”)
age = int(input(“age:”))
print (type(age))          #打印变量类型
job = input(“job:”)
salary = int(input(“salary:”))

info = ‘’’
---------info of %s-------          #%s占位符（s是string,d是data,f是浮点<小数>）
Name:%s
Age:%d
Job:%s
Salary:%d
‘’’% (name,name,age,job,salary)

Print(info)

另一种方法：

name = input(“name:”)
age = int(input(“age:”))
print (type(age))          #打印变量类型
job = input(“job:”)
salary = int(input(“salary:”))

info = ‘’’
---------info of {_name}-------        
Name:{_name}
Age:{age}
Job:{job}
Salary:{salary}
‘’’.format(_name=name,
_age=age,
_job=job,
_salary=salary)

Print(info)

还有一种方法：

name = input(“name:”)
age = int(input(“age:”))
print (type(age))          #打印变量类型
job = input(“job:”)
salary = int(input(“salary:”))

info = ‘’’
---------info of {0}-------        
Name:{0}
Age:{1}
Job:{2}
Salary:{3}
‘’’.format(name,age,job,salary)

Print(info)