name = "qian" age = "18" job = "IT"info = '''__________info of __________ Name = {_name} Age = {_age} Job = {_job} '''.format(_name=name,_age=age_job=job) print(info)

格式化拼接

name = input（"name:"） age = input（"age:"） job = job（"job":）info = '''__________info of __________ Name = %s Age = %s Job = %s '''%(name,age,job)print(info)

?

?密碼加密

password

import getpass #引入標準庫 username = input("username:") password = getpass.getpass("password:") print(username,password)#不可以在pycharm使用

=表示賦值

==表示等于

if else 條件句判斷

import getpass_username = 'qian' _password = '5201314' username = input("username:") password = input("password:")if _username == username and _password == password:print("Welcome user{name} login ...".format(name = username)) #需要首行縮進 強制縮進 else:print("Invaild username or password!")

?

old_boy_age = 56 guess_age = int(input("guess age:")) if guess_age == old_boy_age :print ("you are right") elif guess_age > old_boy_age :print("you think smaller") else:print("you think bigger")

?input默認輸入字符串

while循環(huán)

count = 0 while True:print("count：",count)count = count +1

for循環(huán)

for i in range(500000):print("loop",i) """count = 0 while True:print("count:",count)count = count+1if count == 1000:break""" for i in range(0,500,2):if i <5:print("loop",i)else :continue #跳出本次循環(huán)，接入下次循環(huán)print("hehe")#break 結束本次循環(huán)

?循環(huán)套循環(huán)

for i in range(10):print("-------------",i)for j in range(10):print(j)if j >5:break

homework

_username = 'qian' _password = '5201314' count = 0 while count <3:username = input("username:")password = input("password:")if username ==_username and password == _password:breakprint("hello,welcome {name}".format(name = username))else:print("you password fault")count +=1 else:print("Your account has been locked")

?

轉(zhuǎn)載于:https://www.cnblogs.com/learnpython/p/10249287.html

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