香港服务器在python中退出循环的方法

1.使用return语句退出循环

def test():

while True:

for x in range(10):

print(x)

return

test()

2.利用变量值的变化退出循环

a = [[1, 2, 3], [5, 5, 6], [7, 8, 9]]

# init_i = 0

# init_j = 0

flag = True

for i in range(3):

for j in range(3):

# print(i, j)

if a[i][j] == 5:

flag = False

init_i = i

init_j = j

break

if not flag:

break

print(init_i, init_j)

print(i, j)

3.利用else continue 和外层的break跳出循环

a = [[1, 2, 3], [5, 5, 6], [7, 8, 9]]

init_i = 0

init_j = 0

flag = True

for i in range(3):

for j in range(3):

# print(i, j)

if a[i][j] == 5:

flag = False

init_i = i

init_j = j

break

else:

continue

break

# if not flag:

# break

print(init_i, init_j)

print(i, j)