html中hover有静止的命令,我可以通过JavaScript禁用CSS：hover效果吗？

您可以使用javascript自己处理样式表和样式表规则

var sheetCount = document.styleSheets.length;

var lastSheet = document.styleSheets[sheetCount-1];

var ruleCount;

if (lastSheet.cssRules) { // Firefox uses 'cssRules'

ruleCount = lastSheet.cssRules.length;

}

else if (lastSheet.rules) { / /IE uses 'rules'

ruleCount = lastSheet.rules.length;

}

var newRule = "a:hover { text-decoration: none !important; color: #000 !important; }";

// insert as the last rule in the last sheet so it

// overrides (not overwrites) previous definitions

lastSheet.insertRule(newRule, ruleCount);

使属性！important并使之成为最后一个CSS定义应该覆盖任何先前的定义，除非更明确地针对一个定义。在这种情况下，您可能必须插入更多规则。