strcpy ,memcpy区别

// strcpy(buffer,(char *)&str_a);

strcpy复杂过程中若是遇到0则会结束
memcpy(buffer,(char *)&str_a,sizeof(str_a));

memcpy则是整块的拷贝

char buffer[128];

STR_A str_b;

STR_A str_a ;
str_a.b = 3;
str_a.c = 5;

// strcpy(buffer,(char *)&str_a);
memcpy(buffer,(char *)&str_a,sizeof(str_a));

str_b = *(STR_A *)buffer;

cout<< str_a.b<<"---"<<str_a.c<<endl;

cout<< str_b.b<<"---"<<str_b.c<<endl;

看看这个程序就可以知道其细微差别了