16进制数据与浮点型数据转换——c语言程序

#include<stdio.h> #include<stdlib.h> #include <process.h> #include<math.h> #define PI 3.1415926 //圆周率 int main() { // 将十六进制转换为float形式,0x //1F 23 7D BF 00 8C 0F BB 88 FC 6B 42 unsigned char pMem[] = {0xbd ,0xa9 ,0x0c ,0xc0}; float *p = (float*)pMem; printf("%g\r\n",*p); int x = 0; int y = 0; double fitness = -(x*x-10*cos(2*PI*x)+10) - (y*y-10*cos(2*PI*y)+10) + 60; // 将float转换为16进制 float a=2.20011; unsigned char * b = (unsigned char*)&a; for(int i = 0; i<4; i++) printf("0x%2X,", b[i]); system("pause"); return 0; }