浮点字符串转int类型报错，解决

一，直接上代码，先转double,再强转int，看你是选择，舍入，还是直接取整数位

            var a1 = "1500.76";
            var a2 = Convert.ToDouble(a1);
            var c = Math.Round(Convert.ToDouble(a1), 0);
            //var b = Convert.ToInt32(a1);    //报错
            var b3 = Convert.ToInt32(Convert.ToDouble(a1));
            var b4 = (int)Convert.ToDouble(a1);  

二，结果如下图