python多个变量的for循环

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当for循环有两个需要迭代的对象时，要用zip对这多个变量封装，否则会报错“too many values to unpack”

错误的例子：

starts = [0,1,2,3,4]
ends = [5,6,7,8,9]
for start, end in starts, ends:
    print((start, end))

正确的例子：

starts = [0,1,2,3,4]
ends = [5,6,7,8,9]
for start, end in zip(starts, ends):
    print((start, end))