// 示例代码
$(document).on('ready',function(){
    setInterval(updateDiv,3000);
});
function updateDiv(){
    $.ajax({
        url: 'getContent.php',
        success: function(data){
            $('.square').html(data);
        },
        error: function(){
            $.playSound('oneday.wav');
            $('.square').html('连接问题');
            // 我想在这里停止它
        }
    });
}

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