<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>贪食蛇</title></head>
<body>
<mce:style type="text/css"><!--
.table_back{width:320px;height:320px;border-bottom:1px solid black;border-right:1px solid black;}
.floor{border-left:1px solid black;border-top:1px solid black;font-size:1px;}
--></mce:style><style type="text/css" mce_bogus="1">.table_back{width:320px;height:320px;border-bottom:1px solid black;border-right:1px solid black;}
.floor{border-left:1px solid black;border-top:1px solid black;font-size:1px;}</style>
<mce:script type="text/javascript"><!--
/*--
标题：简单的贪吃蛇
设计：王集鹄
博客：http://blog.csdn.net/zswang
日期：2010年1月22日
--*/
function Snake(options) {
var self = this;
options = options || {};
this.colCount = options.colCount || 20;
this.rowCount = options.rowCount || 20;
this.parent = options.parent || document.body; // 容器
this.speed = options.speed || 200; // 移动间隔时间
this.initLength = options.initLength || 3; // 初始长度
this.button_replay = document.createElement("input");
this.button_replay.type = "button";
this.button_replay.value = "replay";
this.button_replay.onclick = function() {
self.replay();
};
this.parent.appendChild(this.button_replay);
this.table_back = document.createElement("table");
this.table_back.className = "table_back";
this.table_back.cellPadding = "0px";
this.table_back.cellSpacing = "0px";
this.playing = false; // 是否在进行中
this.floors = {}; // 矩阵地板矩阵 [y,x]
for (var i = 0; i < this.rowCount; i++) {
var tr = this.table_back.insertRow(-1);
for (var j = 0; j < this.colCount; j++) {
var td = tr.insertCell(-1);
td.classNa
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<title>php爱好者|phpfans.net|---判断远程图片是否存在，否则替换成默认图片</title>
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<p>判断远程图片是否存在，不存在的话替换成默认的 ......
