例如char* pstr;
有几种方式:
pstr = "123";
char s[] = "123";
pstr = s;
pstr = (char*)malloc(4);
pstr[0] = '1';
pstr[1] = '2';
pstr[2] = '3';
pstr[3] = '\0';
那么,如何通过pstr判断它是哪种方式的?
例如char* pstr;
有几种方式:
pstr = "123";
char s[] = "123";
pstr = s;
pstr = (char*)malloc(4);
pstr[0] = '1';
pstr[1] = '2';
pstr[2] = '3';
pstr[3] = '\0';
那么,如何通过pstr判断它是哪种方式的?