JavaScript添加和删除Class
//Add Class
document.getElementById("MyElement").className += " MyClass";
//Remove Class
document.getElementById("MyElement").className = document.getElementById("MyElement").className.replace(/(?:^|\s)MyClass(?!\S)/,'');
JavaScript添加和删除Class
//Add Class
document.getElementById("MyElement").className += " MyClass";
//Remove Class
document.getElementById("MyElement").className = document.getElementById("MyElement").className.replace(/(?:^|\s)MyClass(?!\S)/,'');