C#基础温习(9):double转int需要注意的地方
我们都知道在C#double变量所占用的字节数比int的多,那么我们把double类型转化成int类型的时候就会损失一些东西,那么具体的损失规则是什么样的呢?强制转化和Convert.ToInt32转化是否相同呢?
好了上面两个问题用下面的代码和结果来回答,具体的内容聪明的你一看就明白。
示例代码:
using System; namespace HelloWorld { class Program { static void Main(string[] args) { double num1 = 6.321; int int1 = (int)num1; int int11 = Convert.ToInt32(num1); double num2 = 6.635; int int2 = (int)num2; int int22 = Convert.ToInt32(num2); double num11 = -6.321; int int111 = (int)num11; int int1111 = Convert.ToInt32(num11); double num22 = -6.635; int int222 = (int)num22; int int2222 = Convert.ToInt32(num22); Console.WriteLine("int1="+int1); Console.WriteLine("int11=" + int11); Console.WriteLine("int111=" + int111); Console.WriteLine("int1111=" + int1111); Console.WriteLine("int2=" + int2); Console.WriteLine("int22=" + int22); Console.WriteLine("int222=" + int222); Console.WriteLine("int2222=" + int2222); Console.ReadKey(); } } }运行结果: