1. Python 循环输入输出交互 Python在线笔试琐碎 求两个整数 A+B 的和。 while True: try: (n, m) = (int(x) for x in raw_input().split()) print(n+m) except KeyError: break 2. java 文件中读取: Scanner in = new Scanner(new FileReader("file.txt")); while (in.hasNext()) { int n = in.nextInt(); }