一 : 密文密码_getpass

import getpass #密文密码 需要导入的标准库_username = 'chenqiang'_password = '123456'username = input("username :")# password = getpass.getpass("password :") //使用 getpass 方法密文password = input("password :")if _username == username and _password == password:    print('welcome user {name} login...'.format(name=username))else:    print('Invalid username or password')print('ddd')

 

二 : 输出格式

name = input("name : ")age = int(input("age : "))  # integer  raw_input = input# print(type(age), type(str(age)))  //type()打印变量类型job = input("job : ")salary = input("salary : ")print() 方法一:info = '''--------- info  of  %s ----------Name:%sAge:%dJob:%sSalary:%s''' % (name, name, age, job, salary) 方法二:info2 = '''--------- info  of  {_name} ----------Name:{_name}Age:{_age}Job:{_job}Salary:{_salary}'''.format(_name=name,           _age=age,           _job=job,           _salary=salary) 方法三:info3 = '''--------- info  of  {0} ----------Name:{0}Age:{1}Job:{2}Salary:{3}'''.format(name, age, job, salary)print(info3)

 

三: while for 循环

while True:    print('count :',count)    count += 1    if count == 1000:        break

for i in range(0,10):    if i < 3:        print('loop :',i)    else:        continue #跳出本次循环  进入下一个循环    print('呵呵')

 

四:猜数游戏

方法1: age_of_oldboy = 56count = 0while count < 3:    guess_age = int(input('guess age:'))    if guess_age == age_of_oldboy:        print('yes,you got it')        break //如果猜对了-结束    elif guess_age > age_of_oldboy:        print('think smaller!')    else:        print('think bigger!')    count += 1    if count == 3: //三次后询问是否继续        countinue_confirm = input('do you want to keep guessing..??')        if countinue_confirm != 'n':            count = 0else:    print('you have tried too many times..fuck off')

方法2: age_of_oldman = 56for i in range(3):    guess_age = int(input('guess age:'))    if guess_age == age_of_oldman:        print('yes,you got it')        break #破坏循环 else 也不走了    elif guess_age > age_of_oldman:        print('think smaller!')    else:        print('think bigger!')else:    print('you have tried too many times..fuck off')