在c＃中将decimal转换为int

Question

例如，当rate = 0.085时，为什么百分比会返回0？

int percentage = (int)rate*100;

Answer 1

The cast operation is applied before the multiplication. 在乘法之前应用强制转换操作。 Try: 尝试：

int percentage = (int)(rate*100);

Edit: Here's the C# guide on order of operator evaluation . 编辑：这是运营商评估顺序的C＃指南。

Answer 2

It returns 0 because of order of operations. 由于操作顺序，它返回0。 rate is cast as an integer prior to multiplying. 在乘法之前将rate为整数。

You need an extra set of parentheses to make this work. 您需要一组额外的括号才能使其正常工作。

int percentage = (int)(rate*100);

Answer 3

尝试：

int percentage = (int)(rate * 100);

Answer 4

Try: 尝试：

int percentage = (int)(rate*100);

You're converting rate to an int BEFORE you multiply it otherwise. 你将rate转换为int，然后再乘以它。