Coffeescript：

$("nav").find("a").click (e) ->

    e.preventDefault()
    section = $(this).attr "href"
    $("html, body").animate
        scrollTop: $(section).offset().top

或JS：

$("nav").find("a").click(function(e) {
    
    e.preventDefault();
    
    var section = $(this).attr("href");

    $("html, body").animate({

        scrollTop: $(section).offset().top    }
    );
}
    );
    

和一些示例HTML

nav>
    
    a href="#welcome">
    Welcome/a>
    
    a href="#about">
    About/a>
    
    a href="#section3">
    Section 3/a>
    
/nav>
    
div id="welcome">
    Welcome to this website/div>
    
div id="about">
    About this website, and such/div>
    
div id="section3">
    The third section/div>