键盘按钮keyCode大全
来源:互联网 发布:林俊杰 睡粉 知乎 编辑:程序博客网 时间:2024/05/18 02:55
键盘按钮keyCode大全
可以根据按的键盘上的键,显示键盘动作,并显示keyCode值等
代码:
- <STYLE TYPE="text/css">
- TD {text-align:center}
- </STYLE>
- <SCRIPT LANGUAGE="JavaScript">
- function init() {
- document.onkeydown = showKeyDown
- document.onkeyup = showKeyUp
- document.onkeypress = showKeyPress
- }
- function showKeyDown(evt) {
- evt = (evt) ? evt : window.event
- document.getElementById("pressKeyCode").innerHTML = 0
- document.getElementById("upKeyCode").innerHTML = 0
- document.getElementById("pressCharCode").innerHTML = 0
- document.getElementById("upCharCode").innerHTML = 0
- restoreModifiers("")
- restoreModifiers("Down")
- restoreModifiers("Up")
- document.getElementById("downKeyCode").innerHTML = evt.keyCode
- if (evt.charCode) {
- document.getElementById("downCharCode").innerHTML = evt.charCode
- }
- showModifiers("Down", evt)
- }
- function showKeyUp(evt) {
- evt = (evt) ? evt : window.event
- document.getElementById("upKeyCode").innerHTML = evt.keyCode
- if (evt.charCode) {
- document.getElementById("upCharCode").innerHTML = evt.charCode
- }
- showModifiers("Up", evt)
- return false
- }
- function showKeyPress(evt) {
- evt = (evt) ? evt : window.event
- document.getElementById("pressKeyCode").innerHTML = evt.keyCode
- if (evt.charCode) {
- document.getElementById("pressCharCode").innerHTML = evt.charCode
- }
- showModifiers("", evt)
- return false
- }
- function showModifiers(ext, evt) {
- restoreModifiers(ext)
- if (evt.shiftKey) {
- document.getElementById("shift" + ext).style.backgroundColor = "#ff0000"
- }
- if (evt.ctrlKey) {
- document.getElementById("ctrl" + ext).style.backgroundColor = "#00ff00"
- }
- if (evt.altKey) {
- document.getElementById("alt" + ext).style.backgroundColor = "#0000ff"
- }
- }
- function restoreModifiers(ext) {
- document.getElementById("shift" + ext).style.backgroundColor = "#ffffff"
- document.getElementById("ctrl" + ext).style.backgroundColor = "#ffffff"
- document.getElementById("alt" + ext).style.backgroundColor = "#ffffff"
- }
- </SCRIPT>
- </HEAD>
- <BODY onLoad="init()">
- <H1>Keyboard Event Handler Lab</H1>
- <HR>
- <FORM>
- <TABLE BORDER=2 CELLPADDING=2>
- <TR><TH></TH><TH>onKeyDown</TH><TH>onKeyPress</TH><TH>onKeyUp</TH></TR>
- <TR><TH>Key Codes</TH>
- <TD ID="downKeyCode">0</TD>
- <TD ID="pressKeyCode">0</TD>
- <TD ID="upKeyCode">0</TD>
- </TR>
- <TR><TH>Char Codes (IE5/Mac; NN6)</TH>
- <TD ID="downCharCode">0</TD>
- <TD ID="pressCharCode">0</TD>
- <TD ID="upCharCode">0</TD>
- </TR>
- <TR><TH ROWSPAN=3>Modifier Keys</TH>
- <TD><SPAN ID="shiftDown">Shift</SPAN></TD>
- <TD><SPAN ID="shift">Shift</SPAN></TD>
- <TD><SPAN ID="shiftUp">Shift</SPAN></TD>
- </TR>
- <TR>
- <TD><SPAN ID="ctrlDown">Ctrl</SPAN></TD>
- <TD><SPAN ID="ctrl">Ctrl</SPAN></TD>
- <TD><SPAN ID="ctrlUp">Ctrl</SPAN></TD>
- </TR>
- <TR>
- <TD><SPAN ID="altDown">Alt</SPAN></TD>
- <TD><SPAN ID="alt">Alt</SPAN></TD>
- <TD><SPAN ID="altUp">Alt</SPAN></TD>
- </TR>
- </TABLE>
- </FORM>
=============下面的可以复制,现在动手复制看效果吧===========
<STYLE TYPE="text/css">
TD {text-align:center}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
function init() {
document.onkeydown = showKeyDown
document.onkeyup = showKeyUp
document.onkeypress = showKeyPress
}
function showKeyDown(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = 0
document.getElementById("upKeyCode").innerHTML = 0
document.getElementById("pressCharCode").innerHTML = 0
document.getElementById("upCharCode").innerHTML = 0
restoreModifiers("")
restoreModifiers("Down")
restoreModifiers("Up")
document.getElementById("downKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("downCharCode").innerHTML = evt.charCode
}
showModifiers("Down", evt)
}
function showKeyUp(evt) {
evt = (evt) ? evt : window.event
document.getElementById("upKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("upCharCode").innerHTML = evt.charCode
}
showModifiers("Up", evt)
return false
}
function showKeyPress(evt) {
evt = (evt) ? evt : window.event
document.getElementById("pressKeyCode").innerHTML = evt.keyCode
if (evt.charCode) {
document.getElementById("pressCharCode").innerHTML = evt.charCode
}
showModifiers("", evt)
return false
}
function showModifiers(ext, evt) {
restoreModifiers(ext)
if (evt.shiftKey) {
document.getElementById("shift" + ext).style.backgroundColor = "#ff0000"
}
if (evt.ctrlKey) {
document.getElementById("ctrl" + ext).style.backgroundColor = "#00ff00"
}
if (evt.altKey) {
document.getElementById("alt" + ext).style.backgroundColor = "#0000ff"
}
}
function restoreModifiers(ext) {
document.getElementById("shift" + ext).style.backgroundColor = "#ffffff"
document.getElementById("ctrl" + ext).style.backgroundColor = "#ffffff"
document.getElementById("alt" + ext).style.backgroundColor = "#ffffff"
}
</SCRIPT>
</HEAD>
<BODY onLoad="init()">
<H1>Keyboard Event Handler Lab</H1>
<HR>
<FORM>
<TABLE BORDER=2 CELLPADDING=2>
<TR><TH></TH><TH>onKeyDown</TH><TH>onKeyPress</TH><TH>onKeyUp</TH></TR>
<TR><TH>Key Codes</TH>
<TD ID="downKeyCode">0</TD>
<TD ID="pressKeyCode">0</TD>
<TD ID="upKeyCode">0</TD>
</TR>
<TR><TH>Char Codes (IE5/Mac; NN6)</TH>
<TD ID="downCharCode">0</TD>
<TD ID="pressCharCode">0</TD>
<TD ID="upCharCode">0</TD>
</TR>
<TR><TH ROWSPAN=3>Modifier Keys</TH>
<TD><SPAN ID="shiftDown">Shift</SPAN></TD>
<TD><SPAN ID="shift">Shift</SPAN></TD>
<TD><SPAN ID="shiftUp">Shift</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="ctrlDown">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrl">Ctrl</SPAN></TD>
<TD><SPAN ID="ctrlUp">Ctrl</SPAN></TD>
</TR>
<TR>
<TD><SPAN ID="altDown">Alt</SPAN></TD>
<TD><SPAN ID="alt">Alt</SPAN></TD>
<TD><SPAN ID="altUp">Alt</SPAN></TD>
</TR>
</TABLE>
</FORM>
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