为什么操作符 ( *) 需要访问int*变量的值而不是 for char*？
char *char_ptr;
int *int_ptr;
int mem_size = 50;
char_ptr = (char *) malloc(mem_size);
strcpy(char_ptr, "This is memory is located on the heap.");
printf("char_ptr (%p) --> '%s'\n", char_ptr, char_ptr);
int_ptr = (int *) malloc(12);
*int_ptr = 31337;
printf("int_ptr (%p) --> %d\n", int_ptr, *int_ptr);
输出：
char_ptr (0x8742008) --> 'This is memory is located on the heap.'
int_ptr (0x8742040) --> 31337