Javascript div背景图像未更改

我有下面的HTML页面

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您试图清除浏览器的缓存？

您试图清除浏览器的缓存？

找到了罪魁祸首，它正在缓存ajax调用，因此采用了相同的值，因此我将

'cache:false'

 $.ajax({
        type: "GET",
        url: '@Url.Action("GetProfilePictureValue", "Student")',
        data: { "StudentId": studentID },
        dataType: "json",
        cache: false,
        success: function (newProfilePictureBase64Value)
        {
            $("#profilephoto").css('background', 'none');
            $('#profilephoto').css('background', 'url(data:image/png;base64,' + newProfilePictureBase64Value + ') no-repeat 50% 50%;');
            $("#profilephoto").load(location.href + " #profilephoto>*", "");

        },
        error: function ()
        {
            alert('Error occured');
        }
    });

---

找到了罪魁祸首，它缓存了ajax调用，所以取了相同的值，所以我把

'cache:false'

 $.ajax({
        type: "GET",
        url: '@Url.Action("GetProfilePictureValue", "Student")',
        data: { "StudentId": studentID },
        dataType: "json",
        cache: false,
        success: function (newProfilePictureBase64Value)
        {
            $("#profilephoto").css('background', 'none');
            $('#profilephoto').css('background', 'url(data:image/png;base64,' + newProfilePictureBase64Value + ') no-repeat 50% 50%;');
            $("#profilephoto").load(location.href + " #profilephoto>*", "");

        },
        error: function ()
        {
            alert('Error occured');
        }
    });

 $.ajax({
        type: "GET",
        url: '@Url.Action("GetProfilePictureValue", "Student")',
        data: { "StudentId": studentID },
        dataType: "json",
        cache: false,
        success: function (newProfilePictureBase64Value)
        {
            $("#profilephoto").css('background', 'none');
            $('#profilephoto').css('background', 'url(data:image/png;base64,' + newProfilePictureBase64Value + ') no-repeat 50% 50%;');
            $("#profilephoto").load(location.href + " #profilephoto>*", "");

        },
        error: function ()
        {
            alert('Error occured');
        }
    });