//键盘事件对象中的altkey ctrlKey shiftKey对应三个键alt ctrl shift< ! DOCTYPE HTML >
< html lang = 'en' >
< head>
< meta charset = 'UTF-8' / >
< title> Document1< / title>
< style>
div{
width: 500 px;
height: 500 px;
border: 1 px solid black;
}
< / style>
< / head>
< body>
< div> < / div>
< input type = 'text' / >
< input type = 'button' value = '发布' / >
< script>
var div = document. getElementsByTagName ( 'div' ) [ 0 ] ;
var text = document. getElementsByTagName ( 'input' ) [ 0 ] ;
var button = document. getElementsByTagName ( 'input' ) [ 1 ] ;
button. onclick = function ( ) {
div. innerHTML = text. value;
}
document. onkeydown = function ( e) {
var evt = e || event;
console. log ( evt. ctrlKey) ;
console. log ( evt. keyCode) ; if ( evt. keyCode === 13 && evt. ctrlKey) {
div. innerHTML = text. value;
} }
< / script>
< / body>
< / html>