c语言float和bytes array转换
重点：大小端不要搞错
x86是小端，0x123456,对应4个字节，0x12,0x34,0x56,0x78. 在内存中的存储顺序是 0x78, 0x56, 0x34, 0x12
#include <stdio.h>
int main(){
unsigned char buffer[] = {0x46, 0x87, 0x92, 0x64};
float a = 17353.195f;
float b = 0;
printf("zzzzz ....\n");
unsigned int* pa = (unsigned int*)(&a);
unsigned int x = *pa;
int x1 = (x >> 24) & 0xFF;
int x2 = (x >> 16) & 0xFF;
int x3 = (x >> 8) & 0xFF;
int x4 = x & 0xFF;
printf("%x",x1 );
printf("%x", x2);
printf("%x", x3);
printf("%x", x4);
printf("\n");
un...