国赛终于解出Java题了,顺利拿下一血,思路之前也学过。继续加油 normal_snake 题目解读 @RequestMapping({"/read"}) public String hello(@RequestParam(name = "data", required = false) String data, Model model) { try { if (data.contains("!!")) return "pls dont do that!!!"; new SafeConstructorWithException(data); Yaml yaml = new Yaml(); yaml.load(data); return "Well done"; } catch (SafeStringException e) { return "Unsafe data detected!"; } catch (CustomException e) { return "No way to pass!"; } catch (Exception e) { return "snake...