Question

Uncaught SyntaxError: Unexpected identifier求解救啊

Object.prototype.extends = function(parents,action){ for (var prop in parents) { this.prototype[prop]=parents.prototype[prop] } for (var prop in action) { this.prototype[prop]=action[prop] }}function Player (name){ this.name = name; this.point = -1;}Player.prototype={ guess:function(){ console.error('此方法是chouxiang'); }}

function NormalPlayer (name){ this.name = name; this.point = -1;}NormalPlayer.extends(Player,{ guess:function(){ this.point = window.prompt('请输入123，1石头2剪刀3布'); }})

function ComPlayer (name){ this.name = name; this.point= -1;}ComPlayer.extends(Player,{ guess:function(){ this.point = parseInt(Math.random()*100)%3+1; }})

function GuessSystem (player1,player2){ this.p1 = player1; this.p2 = player2;}GuessSystem.prototype = { play:function (){ var res; this.p1.guess(); this.p2.guess(); res = biJiao(this.p1.point,this.p2.point); this.show(res); } biJiao:function(play1,play2){ var res = play1-play2; return res; } show: function (bijiao){ switch (bijiao){ case -1||1: console.log('You Win!'); break; case -2||2: console.log('You Lose!'); break; case 0: console.log('Draw!!!'); break; default: console.log('程序错误！！')； break; } }}

Answer 1

bijiao函数前面的“”}“”后面加个逗号，这是在prototype函数里定义，需要加逗号隔开，{}代表json格式，json格式的多个元素之间用逗号分隔，语法问题，一般出现这个错误先检查语法错误，是否缺少逗号，分号等