后缀＆QUOT;餐饮QUOT;在浮点值？ [英] Suffix of "f" on float value?

问题描述

我想知道的区别是在C这两个变量之间是什么：

I am wondering what the difference is between these two variables in C:

float price = 3.00;

和

float price = 3.00f;

结尾的F？

推荐答案

3.00 是间preTED为双击，而不是 3.00f 编译器为浮法这被视为。

3.00 is interpreted as a double, as opposed to 3.00f which is seen by the compiler as a float.

的˚F后缀只是告诉编译器这是一个浮动和这是一个双。

The f suffix simply tells the compiler which is a float and which is a double.

请参阅 MSDN（C ++）

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