一、while 判断条件:
执行语句……
如果条件不符判断条件假false时,循环结束。
namesList = ['xiaoWang','xiaoZhang','xiaoHua']
length = len(namesList)
i = 0
while i<length:
print(namesList[i])
i+=1
二、while 语句中还有另外两个重要的命令 continue,break 来跳过循环,continue 用于跳过该次循环,break 则是用于退出循环。
参考代码break:
i = 0
while i<10:
i = i+1
print('----')
if i==5:
break
print(i)
参考代码continue:
i = 0
while i<5:
i = i+1
print('----')
if i==3:
continue
print(i)
三、循环嵌套参考代码
i = 1
while i<=5:
j = 1
while j<=i:
print("* ",end='')
j+=1
print("\n")
i+=1