Question

我有一个简单的JavaScript代码，但它不起作用。我的代码是：

<html>
<head>
    <title>JavaScript</title>
<script>    
var target;
var guess_input;
var guesses = 0;
var finished = false;
var colors = ["black","blue","green","purple","red","white","yellow"];



        function do(){


            var random = Math.random();
            var index = Math.floor(random * 7);
            target = colors[index];
            while(!finished){
                guess_input = prompt("I am thinking of a color : black, blue, green, purple, red, white \n\n" + "What color am i thinking of?");
                guesses++;
                finished = check();    
            }
            var myBody = document.getElementsByTagName("body")[0];
            myBody.style.background = target;
        }

        function check(){
            if (guess_input > target){
                alert("your color is alphabetically higher than mine");
                return false;
            }

            if (guess_input < target){
                alert("your color is alphabetically lower than mine");
                return false;
            }

            if (guess_input == target){
                alert("your color is correct! it tooks you" + guesses "guesses to finish the game!");
                return true;
            }
            else {
                alert("Sorry, I do not recoginize your color");
                return false;
            }
</script>
</head>
    <body onload = "do()">

    </body>

</html>

错误消息是：Uncaught SyntaxError：意外的令牌 part2.html：53 Uncaught SyntaxError：Unexpected token），这是“function do（）”，那么问题是什么？谢谢！

Answer 1

您缺少用于功能检查的紧密括号，并将功能名称更改为其他功能，例如doSomething

    <html>
    <head>
        <title>JavaScript</title>
    <script>    
    var target;
    var guess_input;
    var guesses = 0;
    var finished = false;
    var colors = ["black","blue","green","purple","red","white","yellow"];
            function doSomething(){


                var random = Math.random();
                var index = Math.floor(random * 7);
                target = colors[index];
                while(!finished){
                    guess_input = prompt("I am thinking of a color : black, blue, green, purple, red, white \n\n" + "What color am i thinking of?");
                    guesses++;
                    finished = check();    
                }
                var myBody = document.getElementsByTagName("body")[0];
                myBody.style.background = target;
            }

            function check(){
                if (guess_input > target){
                    alert("your color is alphabetically higher than mine");
                    return false;
                }

                if (guess_input < target){
                    alert("your color is alphabetically lower than mine");
                    return false;
                }

                if (guess_input == target){
                    alert("your color is correct! it tooks you" + guesses "guesses to finish the game!");
                    return true;
                }
                else {
                    alert("Sorry, I do not recoginize your color");
                    return false;
                }
            }
    </script>
    </head>
    <body onload="doSomething()">

    </body>

    </html>

html body onload不起作用

1 个答案: