fly怎么读音

 我只需获取初始选择值val()并将其作为文本分配给title容器： 
 
title.text(select.val() || 'Please Select');
 
 如果所选value空（或者最初未选择任何选项），它将使用标准的“请选择”文本更新title 。 
 
 的jsfiddle 
 
 如果你想对代码有更多的控制权，你可以广泛地编写上面的代码： 
 
if(select.val()){
    title.text(select.val());
    // anything else ...
}else{
    title.text('Please Select');
    // anything else ...
}

I'd simply fetch the initial select value val() and assign it as text to the title container:
 
title.text(select.val() || 'Please Select');
 
If the selected value is empty (or no option is selected initialy), it will update title with a standard 'Please Select' text.
 
JSFiddle
 
If you want to have more controll over the code you can write the above code widely:
 
if(select.val()){
    title.text(select.val());
    // anything else ...
}else{
    title.text('Please Select');
    // anything else ...
}