膜拜了，javascript水好深啊

请将All over the world people enjoy sports替换成All1 over2 the3 world4 people5 enjoy6 sports7

 

 

 

 

 

 

 

大牛的实现：

 

 

var i = 0, str = "All over the world people enjoy sports";
str = str.replace(/\S+/g, function($){return $ + [++i]});
alert(str);