小编Dan*_*ani的帖子

我使用以下代码将文件上传到服务器,但文件未上传.

HTML:

      <form id="upload">
        <div>
            <label for="myFile"></label>
            <div>
                <input type="file" id="myFile" />
            </div>
        </div>
        <button type="submit">Upload</button>
    </form>

使用Javascript:

     // Hook into the form's submit event.
    $('#upload').submit(function () {

        // To keep things simple in this example, we'll
        // use the FormData XMLHttpRequest Level 2 object (which
        // requires modern browsers e.g. IE10+, Firefox 4+, Chrome 7+, Opera 12+ etc).
        var formData = new FormData();

        // We'll grab our file upload form element (there's only one, hence [0]).
        var opmlFile = …

当我在我的SQL中使用LIKE语句时,

例如,

      SELECT * FROM table WHERE name = "%k"

它将返回所有行,其中name以k结尾.

它可以返回:Ok,OOk,OOOk,

我怎么能做同样的陈述,但只有一个字母,所以它只返回Ok.

或2个字母,所以它只返回OOk？