while for

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author:woshinidaye
'''
print("hello world")
'''
# 变量

'''
name = "zhangsan"    #字符串
name2 = name
print("my name is",name,name2)
name = "wangwu"
print(name,name2)
'''
'''
PTE = 123       #用全大写表示常量；
print(PTE)
'''

'''import getpass
my_age = 27
#test =  getpass.getpass(input())
#print(type(age))
n = 0
while n < 5:
    age = int(input("please enter your age:"))
    if age == my_age:
        print("you got it")
        break
    elif age > my_age:
        print("guess smaller~~~")
    else:
        print("guess bigger")
    n = n+1
else:
    print("you have tried many times!!go out!")
'''

#我让你无限玩
'''
my_age = 27
num = 0
while num < 3:
    age = int(input("please enter your age:"))
    if age == my_age:
        print("you got it")
        break
    elif age > my_age:
        print("guess smaller~~~")
    else:
        print("guess bigger")
    num = num+1
    if num == 3:
        print("do you want to try again, yes press y，no press n")
        #choose = input("y or n")
        #print(type(choose),choose)
        choose_times = 0
        while choose_times < 3:
            choose = input("y or n")
            if choose == "n" or choose == 'N':                   #这里要注意哟！！！n没有引号的话表示一个变量，所以要注意哟！！！！
                print("good-bye")
            elif choose == 'y' or choose == "Y":
                print("let's go on")
                choose_times = 3
                num = 0
            else:
                print('only y or n!')
            choose_times +=1
#else:
#    print("you have tried many times!!go out!")
'''



'''
for i in range(0,10,1):    #0到10，步长为1
    print('number',i)
'''


'''
for i in range(0,10,1):    #0到10，步长为1
    print('=====',i,'====')
    for n in range(5):
        #print("number",n)
        if n < 3:
            print('number',n)
        else:
            continue                #区分continue和break的区别
'''
#continue：跳出本次循环，进入下一次循环，
#break：跳出整个循环。