有很多的jquery位可以做到这一点，您可以在Google上搜索“ jquery autocomplete”，然后看看最喜欢哪个。

这是比较有名的一个：http :
//docs.jquery.com/Plugins/AutoComplete

<script>
    var emails = [
        { name: "Kitty Sanchez", to: "kanchez@bluth.com" },
        { name: "Lucille Austero", to: "lucille2@balboatowers.net" },
        { name: "Bob Loblaw", to: "bloblaw@bobloblawlawblog.com" },
        { name: "Sally Sitwell", to: "sally@sitwell.org" }
    ];

    $(document).ready(function(){
        $("#Recipients").autocomplete(emails, {
            multiple: true,
            minChars: 1,
            matchContains: "word",
            autoFill: false,
            formatItem: function(row, i, max) {
                return "\"" + row.name + "\" &lt;" + row.to + "&gt;";
            },
            formatMatch: function(row) {
                return row.name + " " + row.to;
            },
            formatResult: function(row, i, max) {
                return "\"" + row.name + "\" <" + row.to + ">";
            }
        });
    });
</script>