PickUp (1)

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For Loop：

=== old

????for (int i = 0; i < argCount; ++i)

????{

????????std::cout << arr[i];

????}

=== new

????for (auto i:arr)

????{

????????std::cout << i <<" ";

????}

?

????

PickUp (1)

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原文地址：http://www.cnblogs.com/permanence-practice/p/4852033.html