双击后阻止文本选择

function clearSelection() {    if(document.selection && document.selection.empty) {        document.selection.empty();    } else if(window.getSelection) {        var sel = window.getSelection();        sel.removeAllRanges();    }}

您还可以将这些样式应用于所有非IE浏览器和IE10的跨度：

span.no_selection {    user-select: none;     -webkit-user-select: none;     -moz-user-select: none;     -khtml-user-select: none;     -ms-user-select: none; }