嵌套for循环

  • for循环中的for循环
代码
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# coding:utf-8

a = [1, 2, 3]
b = [4, 5, 6]

for i in a:
    print(i)
    print('------')
    for j in b:
        print(i + j)
    print('=======')

print(i, j)