consider the following function that returns the address of stack-allocated local variable: char *fun(void) { Char *a = "a sunny day"; char *ptr = a; ptr = (char*)malloc(10*sizeof(char)); return a; } 我自己的的答案是写a sunny da 不过我跑程式他是给我a sunny day malloc不是借了10个byte为么可以跑出11个byte的字串?