anchor.diff:    // myRouter.get('/', responseRoot);
     // myRouter.get('/login', forlogin);
     //myRouter.get('/no_login', forno_login);
  -  myRouter.get('/search',forsearch);
  + /* myRouter.get('/search',forsearch);*/
     myRouter.get('/student/{stuid_x}', forstuid);
     myRouter.get('/teacher/{teaid_x}', forteaid);
     //myRouter.get('/teacher/{teaid_x}/student/{stuid_m}', forteasearch);
  
positive.code:   } else {
      request.response
        ..writeln('not exit')
        ..close();//没猜对的话回复false
    }
    if (selectinfo == '1003qing') {
      request.response
  
negative.code:   } else {
      request.response
        ..writeln('not exit')
        ..close();//该同学不存在的话显示not exit
    }
    if (selectinfo == '1002yu') {
      request.response
  