keyeventsexample2.htm

来自「这是javascript高级程序设计的源码」· HTM 代码 · 共 38 行

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<html>
    <head>
        <title>Key Events Example</title>
        <script type="text/javascript">
            function handleEvent(oEvent) {
                var oTextbox = document.getElementById("txt1");
                oTextbox.value += "\n>" + oEvent.type;        
                oTextbox.value += "\n    target is " + (oEvent.target || oEvent.srcElement).id;
                oTextbox.value += "\n    keyCode is " + oEvent.keyCode;
                oTextbox.value += "\n    charCode is " + oEvent.charCode;
                
                var arrKeys = [];
                if (oEvent.shiftKey) {
                    arrKeys.push("Shift");
                }
                
                if (oEvent.ctrlKey) {
                    arrKeys.push("Ctrl");
                }
                
                if (oEvent.altKey) {
                    arrKeys.push("Alt");
                }
                
                oTextbox.value += "\n    keys down are " + arrKeys;                     
            }
        </script>
    </head>
    <body>
        <p>Type some characters into the first textbox.</p>
        <p><textarea id="txtInput" rows="15" cols="50"
            onkeydown="handleEvent(event)"
            onkeyup="handleEvent(event)"
            onkeypress="handleEvent(event)"></textarea></p>
        <p><textarea id="txt1" rows="15" cols="50"></textarea></p>
    </body>
</html>

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