在一段内存中查找数据

#include <stdio.h>


char code[] = 
            {
            0x64,0x10,0x00,0x00,0x20,0x64,0x00,0x01,0x00,0x80,
            0x01,0x90,0x08,0x07,0x20,0x64,0xa0,0x00,0x03,0x80,
            0x01,0x90,0x08,0x07,0x20,0x64,0x00,0x08,0x00,0x03,
            0x01,0x07,0x20,0x64,0x64,0x00,0x00,0x00,0x03,0x80,
            0x01,0x90,0x08,0x64,0x64,0x00,0x00,0x00,0x03,0x80,
            0x01,0x90,0x08,0x64,0x00,0x00,0x00,0x00,0x00,0x80,
            0x01,0x90,0x64,0x00,0x00,0x00,0x07,0x20,0x03,0x80,
            0x01,0x64,0x00,0x00,0x00,0x20,0x07,0x20,0x64,0xa0,
            0x01,0x90,0x64,0xa0,0x00,0x03,0x80,0x00,0x03,0x80,
            0x01,0x64,0x00,0x01,0x00,0x64,0x01,0x00,0x00,0x80
            };

int main()
{

    int* cp = (int*)code;
    char* cp1 = code;
    for(int i = 0; i < 100; i++)
    {
        if(*cp == 0x64)
        {
            printf("%0x\n",&cp[i]);
        }
        cp = (int*)(cp1+i+1);//在最后4个字节的时候，需要判断否则超出的100个字节
        
    }
    return 0;
}

查找data中的所有int类型值可能为0x64的地址，由于我们不知道哪四个字节组成才是int，所以只能计算每次地址偏移一个字节的int类型是否为x64.其他类型也是一样方法