int*)malloc(10 * sizeof(int)); if (ps->arr == NULL)//防止malloc开辟空间失败,arr为空,导致内存泄漏 { perror("malloc = 'w'; ps->n = 100; ps->arr = (int*)malloc(10 * sizeof(int)); if (ps->arr == NULL) { perror("malloc
= 'w'; ps->n = 100; ps->arr = (int*)malloc(10*sizeof(int)); if (ps->arr == NULL) { perror("malloc