print('while loop 1')
a=1
while True:
print(a)
a=a+1
if a>5:
break
print('while loop 2')
a=0
while a<5:
print(a)
a=a+1
print('for loop1')
listb=[1,7,3,5,88,4,663]
for b in listb:
print(b)
print('for loop2')
for a in range(1,5):
print(a)
print('for loop3')
for a in range(1,5,2):
print(a)
输出:
while loop 1
1
2
3
4
5
while loop 2
0
1
2
3
4
for loop1
1
7
3
5
88
4
663
for loop2
1
2
3
4
for loop3
1
3