JavaScript：突出显示/选择鼠标指针下的单词

Question

当鼠标指针悬停在JavaScript上时，如何使用JavaScript突出显示（css：background-color）单词？应该可以通过点击选择它并将其保存在一个变量中。

Answer 1

var words=$("#yourTextContainer").text().split(' '); 
$("#yourTextContainer").html(""); 
$.each(words, function(i,val){ 
//wrap each word in a span tag 
$('<span/>').text(val+" ").appendTo("#yourTextContainer"); 

}); 
$("#yourTextContainer span").live("mouseover",function(){ 
//highlight a word when hovered 
$(this).css("background-color","yellow"); 
}); 
$("#yourTextContainer span").live("mouseout",function(){ 
//change bg to white if not selected 
if($(this).css("background-color") !="rgb(0, 0, 255)") 
{ 
$(this).css("background-color","white"); 
} 
}); 
$("#yourTextContainer span").live("click",function(){ 
$("#yourTextContainer span").css("background-color","white"); 
$(this).css("background-color","blue"); 
//gets the text of clicked span tag 
var text = $(this).text(); 
}); 

编辑：参见示例http://jsfiddle.net/aD5Mu/