【面试题】C语言：模拟实现strncpy，尝试比较strncpy与strcpy区别。

#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
#include<string.h>

char* my_strncpy(char* dest, const char* src, size_t count)
{
assert(src);
char* strdest= dest;

while (count--)
{
*dest++ = *src++;

}
*dest = '\0';

return strdest;
}

int main()
{
char arr1[10] = { 0 };
char arr2[] = "hello world!";
char* ret = my_strncpy(arr1, arr2, 2);
printf("%s", ret);
system("pause");
return 0;
}