The difference between strcpy and memcpy

When copying a string, I usually use the strcpy or strncpy function, of course, the memcpy function can also be implemented. So what's the difference between strcpy and memcpy?

Here is a piece of information I found (original address: http://www.cnblogs.com/stoneJin/archive/2011/09/16/2179248.html)

The difference between strcpy and memcpy

strcpy and memcpy are standard C library functions that have the following characteristics.
strcpy provides a copy of the string. That is, strcpy is used only for string copying, and it also copies the end character of the string, not just the string content.

The prototype of the known strcpy function is: char* strcpy (char* dest, const char* SRC);
MEMCPY provides a common memory copy. That is, memcpy has no limitations on what needs to be replicated, so it is more versatile.

Char *strcpy (char * dest, const char * src)//copy of SRC to dest
{
if (src = NULL) | | (dest = NULL))　　To determine the validity of parameter src and dest
{return
 
NULL;
}
Char *strdest = dest;        Saves the first address of the target string while
((*strdest++ = *strsrc++)!= ' ");//Copy the contents of the SRC string to the dest under return
strdest;
}
void *memcpy (void *memto,const void *memfrom,size_t size)
{
if (Memto = = NULL) | | (Memfrom = NULL))　　Memto and Memfrom must be valid return
         NULL;
Char *tempfrom = (char *) memfrom;            Save Memfrom First address
char *tempto = (char *) memto;                 Save Memto first Address     
while (size-> 0)                //Cycle size, copy memfrom value to memto
       *tempto++ = *tempfrom++;  
return memto;
}

strcpy and memcpy mainly have the following 3 differences.

1, the content of replication is different. strcpy can only copy strings, and memcpy may copy arbitrary content, such as character arrays, integers, structs, classes, and so on.
2, the method of replication is different. strcpy does not need to specify a length, it encounters the string end of the copied character "" "only to end, so it is easy to overflow. memcpy determines the length of the copy based on its 3rd parameter.
3, the use of different. You typically use strcpy when you copy strings, and you need to copy other types of data in general memcpy