转换操作的优先级在C＃ [英] Cast operation precedence in C#

问题描述

将在C＃下面的差异此事显著

Will the differences below matter significantly in C#?

int a, b;
double result;
result = (double)a / b;
result = a / (double)b;
result = (double)a / (double)b;

你使用哪一种？

Which one do you use?

推荐答案

在分立前发生的演员。

在你的例子，它不会不管你做哪一个，如果一个操作数是一家双，运行时会投/其他转换为双以及

In your examples, it doesn't matter which one you do as if one operand is a double, the runtime will cast/convert the other to a double as well.

这看起来像一个微型优化 - 不是值得担心或处理，除非测量结果表明它确实是一个瓶颈。

This looks like a micro-optimization - not something worth worrying about or dealing with unless measurements show it is indeed a bottleneck.

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