复制代码 代码如下:
switch(tagname){
case span:
node = element.parent().parent();
element = element;
break;
case td:
node = element.parent();
element = element.find(span);
break;
default:
node = element;
break;
}
以上语句等同于
if(tagname == span){
node = element.parent().parent();
element = element;
}else if(tagname == td){
node = element.parent();
element = element.find(span);
}else{
node = element;
}
注意每个case后，一定要加：break；
default，就相当于else