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Pass by reference

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  • C++
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C++ 中 函数的参数传递时,如果数据量比较大,即使是没有打算修改参数的值,出于性能(速度)方面的考虑,也应该采用 采用 Pass by reference 的方式。

另外,建议在函数的参数声明时,前面加上“const” 明示。
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