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简单代码详解2017.4.13

2024-09-14 16:58:52   222人阅读

break 用于跳出所有循环，并且break下面的代码，将不再执行
continue 用于跳出本次循环，继续下一次循环

while 条件:
代码块

import time #设置时间间隔

while True:
print(‘1‘)
time.sleep(1) #设置时间间隔为1S

print(‘end‘)

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

import time
jiahuai = True
while jiahuai:
    print(‘wanli‘)
    time.sleep(1)
    jiahuai = False
print(‘end‘)
import time
jiahuai = 1
flag = True
while flag:
    print(jiahuai)
    if jiahuai == 10:
        flag = False
    jiahuai = jiahuai+1
    time.sleep(1)
print("end")
kaishi = 1
while True:
   print(kaishi)
   if kaishi == 10:
      break
   kaishi = kaishi+1
while True:
    print("123")
    break
    print("456")
while True:
    print("123")
    continue
    print("456")
start = 1
while True:
    if start == 7:
        start += 1
        continue

    print(start)
    if start == 10:
        break
    start += 1   #start = start + 1    

#输出一到十，没有七

 

简单代码详解2017.4.13


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