JAVA/C#/C/C++ 整數(x32 int) 互轉 位元組/位元(byte/bit)
JAVA/C#/C/C++ 整數(x32 int) 互轉 位元組/位元(byte/bit)
單晶片節省記憶體儲存資料應用技巧
C/C++ 線上編譯: https://www.tutorialspoint.com/compile_c_online.php
C# 線上編譯: https://dotnetfiddle.net/
Code:
/* Online C Compiler and Editor */
#include <stdio.h>
int main()
{
int i,j,Q,R,v;
v=1;
int intbuf[]={1,2,3,4,5,6,7,8,9,10,13,14,15,16};
unsigned char bytrbuf[2]={0x00};//BYTE
for(i=0;i<sizeof(intbuf)/sizeof(int);i++)
{
bytrbuf[0] = (intbuf[i] & 0xFF); // Get the lower byte
bytrbuf[1] = ((intbuf[i] >> 8) & 0xFF); // Get the higher byte
printf("%X %X\n",bytrbuf[1],bytrbuf[0]);
}
int value = (bytrbuf[1] << 8) | bytrbuf[0];
printf("\n%d\n",value);
return 0;
}
2 thoughts on “JAVA/C#/C/C++ 整數(x32 int) 互轉 位元組/位元(byte/bit)”
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單晶片寫法
using System;
public class Program
{
public static void Main()
{
int value = 300; // Example int value
byte lowByte = (byte)(value & 0xFF); // Get the lower byte
byte highByte = (byte)((value >> 8) & 0xFF); // Get the higher byte
string byteString = $"{highByte:X2}{lowByte:X2}";
Console.WriteLine(byteString);
value = (highByte << 8) | lowByte;
Console.WriteLine(value);
}
}