如何将double转换为32位十六进制 [英] how to convert double into 32 bit hexadecimal

问题描述

函数在c＃中将double值转换为32位十六进制？

目前我可以将double转换为64位十六进制但我希望得到32位十六进制的结果..



以下代码用于将double转换为64位十六进制

function in c# to convert double value into 32 hexadecimal?
currently i am able to convert double into 64 bit hexadecimal but i want result in 32 bit hexadecimal..

following code i am using to convert double into 64 bit hexadecimal

public string Converts(double d)
        {
            long ival = BitConverter.DoubleToInt64Bits(d);
            string hex = ival.ToString("X");
            return hex;

        }

推荐答案

这个问题毫无意义，因为数字不能是十六进制或十进制 ，只有数字的字符串表示可以。但是一个字符串不能是64位。



您的代码示例基本上是正确的，但您无法将其转换为返回int32的代码，非常原因很简单：类型 double 是64位，它不能适合32位：

http://en.wikipedia.org/wiki/IEEE_floating_point [ ^ ]。







你不需要特别的转换。一般情况下的转换是字节数组和字节数组。这是本课程的主要目的。在您的情况下：

The question makes no sense, because a number cannot be "hexadecimal" or "decimal", only a string representation of a number can be. But a string cannot be "64-bit".

Your code sample is basically correct, but you cannot "convert" it to the code returning int32, by a very simple reason: the type double is 64-bit, it cannot be fit in 32 bits:
http://en.wikipedia.org/wiki/IEEE_floating_point[^].



You don''t need a special conversion. General-case conversions are to array of bytes and from array of bytes. This is a main purpose of this class. In your case:

internal static string ToHex(float value) {
    byte[] bytes = BitConverter.GetBytes(value);
    uint intValue = BitConverter.ToUInt32(bytes, 0);
    return intValue.ToString("X");
} //ToHex

-SA

非常感谢大家帮助我..

我的问题通过以下代码解决。



公共字符串转换（双d）

{

float f =（float）d;

byte [] convertToBytes = new byte [32];

string hex =;

convertToBytes = BitConverter.GetBytes（f）;

for（int i =（convertToBytes.Count（x => x！= 0）） - 1; i> = 0; i--）

{

hex = hex +，+ convertToBytes [i] .ToString（X）;

}



返回十六进制;

}

thanks a lot to all for helping me..
my problem get solved by following code.

public string Converts(double d)
{
float f = (float)d;
byte[] convertToBytes= new byte[32];
string hex = "";
convertToBytes = BitConverter.GetBytes(f);
for (int i = (convertToBytes.Count(x => x != 0))-1; i >=0; i--)
{
hex = hex + ","+ convertToBytes[i].ToString("X");
}

return hex;
}

http://msdn.microsoft.com/en-us/library/ms131023.aspx [<一个href =http://msdn.microsoft.com/en-us/library/ms131023.aspxtarget =_ blanktitle =新窗口> ^ ]

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