Question

注意：这是我刚刚提出的问题的扩展，我已经进行了编辑＆amp;采取了建议，但仍然没有运气

我正在尝试制作一个网页，当您点击链接时，该链接每100毫秒对角移动一次。

所以我有我的Javascript，但是现在当我点击链接时没有任何反应。我通过JSLint运行我的代码（因此将comaprisions更改为=== not ==，这在JS中很奇怪？）。我从JSLink得到了这个错误：

错误：隐含的全局：自我15,38，文档31

你认为我做错了什么？

<script LANGUAGE="JavaScript" type = "text/javascript">
<!--
    var block         = null;
    var clockStep     = null;
    var index         = 0;
    var maxIndex      = 6;
    var x             = 0;
    var y             = 0;
    var timerInterval = 100;  // milliseconds
    var xPos          = null;
    var yPos          = null;

    function moveBlock()
    {
        if ( index < 0 || index >= maxIndex || block === null || clockStep === null ) 
        { 
            self.clearInterval( clockStep );
            return;
        }

        block.style.left = xPos[index] + "px";
        block.style.top  = yPos[index] + "px";
        index++;
    }

    function onBlockClick( blockID )
    {
        if ( clockStep !== null )
        {
            return;
        }

        block = document.getElementById( blockID );
        index = 0;
        x     = number(block.style.left);  // parseInt( block.style.left, 10 );
        y     = number(block.style.top);  // parseInt( block.style.top, 10 );
        xPos  = new Array( x+10, x+20, x+30, x+40, x+50, x+60 );
        yPos  = new Array( y-10, y-20, y-30, y-40, y-50, y-60 );

        clockStep = self.SetInterval( moveBlock(), timerInterval );
    }
-->
</script>

<style type="text/css" media="all">
    <!--
    @import url("styles.css");

    #blockMenu { z-index: 0; width: 650px; height: 600px; background-color: blue; padding: 0; }

    #block1 { z-index: 30; position: relative; top: 10px;  left: 10px; background-color: red; width: 200px; height: 200px; 
              margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ }
    #block2 { z-index: 30; position: relative; top: 50px; left: 220px; background-color: red; width: 200px; height: 200px; 
              margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ }
    #block3 { z-index: 30; position: relative; top: 50px; left: 440px; background-color: red; width: 200px; height: 200px; 
              margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ }
    #block4 { z-index: 30; position: relative; top: 0px; left: 600px; background-color: red; width: 200px; height: 200px; 
              margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ }

    #block1 a { display: block; width: 100%; height: 100%; }
    #block2 a { display: block; width: 100%; height: 100%; }
    #block3 a { display: block; width: 100%; height: 100%; }
    #block4 a { display: block; width: 100%; height: 100%; }

    #block1 a:hover { background-color: green; }
    #block2 a:hover { background-color: green; }
    #block3 a:hover { background-color: green; }
    #block4 a:hover { background-color: green; }

    #block1 a:active { background-color: yellow; }
    #block2 a:active { background-color: yellow; }
    #block3 a:active { background-color: yellow; }
    #block4 a:active { background-color: yellow; }

    -->
</style>

Answer 1

对于初学者，self.setInterval和self.clearInterval未在任何地方定义

扩展建议：移动块不能在Javascript中工作

1 个答案: