privatestringConvertFloatToString(floatfl) { stringstr =string.Empty; str = String.Format("{0:N2}", fl); returnstr; } /// /// 字符串转double /// /// /// <returns></returns> privatedoubleConvertStringToDouble(stringfl) { doublestr = 0.00; try { if(double.TryParse(fl,outstr)...
//利用强制类型转换,将String字符串类型转换成int和double类型并且输出 string num = "123"; int num1 = Convert.ToInt32(num); Console.WriteLine(num1); double num2 = Convert.ToDouble(num); Console.WriteLine(num2); Console.ReadKey(); 输出结果为 123 123...
uint[] numbers = { UInt32.MinValue, 121, 12345, UInt32.MaxValue }; double result; foreach (uint number in numbers) { result = Convert.ToDouble(number); Console.WriteLine("Converted the UInt32 value {0} to {1}.", number, result); } // The example displays the following output: ...
https://stackoverflow.com/questions/11445700/why-is-string-to-number-conversion-so-slow-in-c Looks likestod()tries to use some "regional standards" from OS. So, every time I want to convert string to double there is a "request" to Windows about "What are correct decimal separator?" Or...
在C#编程过程中，可以使⽤Convert.ToDouble⽅法将字符串或者其他可转换为数字的对象变量转换为double类型，Convert.ToDouble⽅法有多个重载⽅法，最常使⽤的⼀个⽅法将字符串转换为double类型，⽅法签名为：static double ToDouble(string value)。当 Convert.ToDouble⽆法转换时，将会引发程序异常，...
(2)对数据进行四舍五入时候的区别 a. Convert.ToInt32(double value) 如果 value 为两个整数中间的数字,则返回二者中的偶数;即 3.5转换为4,4.5 转换为 4,而 5.5 转换为 6。 不过4.6可以转换为5,4.4转换为4 b. int.Parse("4.5") 直接报错:"输入字符串的格式不正确". c. int(4.6) = 4 Int转化其...
You convert a string to a number by calling the Parse or TryParse method found on numeric types (int, long, double, and so on), or by using methods in the System.Convert class.It's slightly more efficient and straightforward to call a TryParse method (for example, int.TryParse("11", ...
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在System.Convert.ToDouble(String value) 在ConsoleApp.Program.Main(String[] args) 在 E:\CSharpDevelop\ConsoleApp\ConsoleApp\Program.cs 中: 第 10 行 1. 2. 3. 4. 5. 6. 7. 8. 解决办法: TryParse : 判断是否可以正常转换。 string.IsNullOrEmpty(string value) : 判断字串是否为null或空。
TryFromBase64String TryToBase64Chars TryToHexString TryToHexStringLower Converter<TInput,TOutput> DataMisalignedException DateOnly DateTime DateTimeKind DateTimeOffset DayOfWeek DBNull 小数 委托 Delegate.InvocationListEnumerator<TDelegate> DivideByZeroException DllNotFoundException Double DuplicateWaitObjectException...