python循环输入若干成绩_Python输入与循环

python

while循环

while 语句：

执行语句

结束条件

#应用while输出1到11

counts = 1

while True:

print("counts:", counts)

counts = counts +1 #counts +=1

if counts == 11:

break

for 循环

for 变量 in range(起始值，终止值，步长):

循环语句

#从零开始以3为步长不超过10

for i in range(0,10,3)

print(i)

python注释中获得输入信息的几种方式

方法1：

变量1 = input(“A”)

变量2 = input(“B”)

info = '''

C：%s

D：%s

'''%(变量1，变量2)

#输入姓名、年龄，输出姓名、年龄

name = input("name")

age = int(input("age"))

info = '''

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

name:%s

age:%d

'''%(name,name,age)

print(info)

方法2：

变量1 = input(“A”)

变量2 = input(“B”)

info = '''

C：{E}

D：{F}

'''.format(E=变量1，F=变量2)

info2 = '''

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

name:{_name}

age:{_age}

'''.format(_name=name,

_age=age)

print(info2)

方法3：

变量1 = input(“A”)

变量2 = input(“B”)

info = '''

C：{0}

D：{1}

'''.format(变量1，变量2)

info3 = '''

-------------info of {0}---------

name:{0}

age:{1}

'''.format(name, age)

print(info3)

简单登陆

#引入一个getpass

import getpass

#定义一个用户名和密码

_name = '123'

_password = '456'

#获得键盘输入值

name = input("name")

# password = getpass.getpass("password")

# 密码密文，pycharm不好使

password = input("password")

#判断用户名和密码是否一致

if _name == name and _password == password:

#将用户名传给输出语句中

print("welcome user{name} login...".format(name = name))

print("----------------")

else:

print("Invalid password")

猜大小小程序

number = 20

#for 循环 range(开始，结束，步长)

for i in range(1,10,2):

#获得输入值

guess_number = int(input("guess number:"))

#进行比较

if guess_number == number:

print("yes, you got it.")

elif guess_number > number:

print("think smaller ...")

else:

print("think bigger!")

print("loop",i)