<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>宏命令</title>
</head>
<body>
</body>
<script type="text/javascript">
/*
宏命令是一组命令的集合,通过执行宏命令的方式,可以一次执行一批命令。想象一下,家
里有一个万能遥控器,每天回家的时候,只要按一个特别的按钮,它就会帮我们关上房间门,顺
便打开电脑并登录 QQ。
*/
var closeDoorCommand = {
excute: function () {
console.log('关门');
}
};
var openPcCommand = {
excute: function () {
console.log('开电脑');
}
};
var openQQCommand = {
excute: function () {
console.log('登录QQ');
}
};
var MacroCommand = function () {
return {
commandsList: [],
add: function (command) {
this.commandsList.push(command);
},
excute: function () {
for (var i=0, command; command = this.commandsList[i++];) {
command.excute();
}
}
}
};
var macroCommand = MacroCommand();
macroCommand.add(closeDoorCommand);
macroCommand.add(openPcCommand);
macroCommand.add(openQQCommand);
macroCommand.excute();
</script>
</html>