(七)初遇python甚是喜爱之for、while循环迭代操作

#接下来学习循环迭代
#之前的学习中已经有使用到
nums =[1,2,3,4,5]
for num in nums:
    print(num)
#使用break跳出循环体:
nums =[1,2,3,4,5]
for num in nums:
    if num == 3:
        print('找到了3，跳出循环')
        break
    print(num)
#使用continue 继续循环:
nums =[1,2,3,4,5]
for num in nums:
    if num == 3:
        print('继续循环')
        continue
    print(num)
#嵌套循环的例子
nums =[1,2,3,4,5]
for num in nums:
    for letter in 'abc':
        print(num,letter)
#使用内置函数range():
for i in range(10):
    print(i)
#range(1,11)从1开始10结束
#使用while循环
x = 0
while x < 10:
    print(x)
    x+=1
#使用break
x = 0
while x < 10:
    if x == 5:
        break
    print(x)
    x+=1

1
2
3
4
5
1
2
找到了3，跳出循环
1
2
继续循环
4
5
1 a
1 b
1 c
2 a
2 b
2 c
3 a
3 b
3 c
4 a
4 b
4 c
5 a
5 b
5 c
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4