zly return

cv4/a_train.c

@@ -48,18 +48,18 @@ struct car* clear_train(struct car* first, const char* target) {
 			free(this);
 			return NULL;
 		}else {
-			return first;
+			return this;
 		}
 	}
 	while( this->next->next != NULL){
 		if(strcmp(this->value, target) == 0){
 			free(this->next);
 			this->next = this->next->next; 
-			return first;
+			return this;
 		}
 		else {
 			this = this->next;
 		}
 	} 
-	return first;
+	return this;
 }