：那個(gè)file按鈕樣式先忽略點(diǎn)擊選擇圖片（上）

先上傳效果圖：

先忽略文件按鈕樣式

點(diǎn)擊選擇圖片（瀏覽）jquery+php頭像上傳預(yù)覽代碼，隨機(jī)選擇一張圖片

js代碼如下

//上傳圖片立即預(yù)覽
 function previewImage(imgFile) {
  var filextension = imgFile.value.substring(imgFile.value
    .lastIndexOf("."), imgFile.value.length);
  filextension = filextension.toLowerCase();
  if ((filextension != '.jpg') && (filextension != '.gif')
    && (filextension != '.jpeg') && (filextension != '.png')
    && (filextension != '.bmp')) {
   alert("對(duì)不起，系統(tǒng)僅支持標(biāo)準(zhǔn)格式的照片，請(qǐng)您調(diào)整格式后重新上傳，謝謝 !");
   imgFile.focus();
  } else {
   var path;
   if (document.all)//IE
   {
    imgFile.select();
    path = document.selection.createRange().text;
    document.getElementbyId("photo_info").innerHTML = "";
    document.getElementbyId("photo_info").style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true',sizingMethod='scale',src=\""
      + path + "\")";//使用濾鏡效果  
   } else//FF
   {
    path = window.URL.createObjectURL(imgFile.files[0]);// FF 7.0以上
    //path = imgFile.files[0].getAsDataURL();// FF 3.0
    document.getElementbyId("photo_info").innerHTML = "";
    //document.getElementbyId("img1").src = path;
   }
  }
 }

html 代碼其實(shí)并不重要

       物品圖片
       

         選擇圖片 
         
      
      

       * ?詳細(xì)描述
       

        </div></div></div>
</pre></p><p>css代碼不會(huì)上傳</p><p>順便加上上傳圖片的代碼，復(fù)制整個(gè)發(fā)布消息。</p><p><pre class="brush:php;">
public function loseThing(){
   $m=M('info');
   $m->create();
   $upload = new \Think\Upload();// 實(shí)例化上傳類
   $upload->maxSize =  3145728 ;// 設(shè)置附件上傳大小
   $upload->exts  =  array('jpg', 'gif', 'png', 'jpeg','bmp');// 設(shè)置附件上傳類型
   $upload->rootpath = './public/';
   $upload->savepath = '/Uploads/'; // 設(shè)置附件上傳目錄
   $upload->autoSub = false;
   // 上傳文件
   $info = $upload->upload();
   if($info) {
  // 上傳成功
   foreach($info as $file){
    $m->info_photo=$file['savename'];
   }
  }
   $m->create_time=date('Y-m-d H:i:s',time()); 
   $m->uid=$_SESSION['id'];
   $m->username=$_SESSION['username'];
  /* $m->user_img=$_SESSION['filename']; */
   $m->info_type="尋物啟事";//信息類型為失物
   $lastId=$m->add();
   if($lastId){
    $this->success('發(fā)布成功');
   }else{
    $this->error('發(fā)布失敗,請(qǐng)先登錄');
   } 
  }
</pre></p><p>以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助<strong>jquery+php頭像上傳預(yù)覽代碼</strong>，也希望大家多多支持源碼庫(kù)。</p><p>注意：請(qǐng)移步pHp教程頻道閱讀相關(guān)教程知識(shí)。</p>            <p>
                當(dāng)前文章：<a href="http://www.muchs.cn/news27/296427.html">：那個(gè)file按鈕樣式先忽略點(diǎn)擊選擇圖片（上）</a>
                <br>
                文章URL：<a href="http://www.muchs.cn/news27/296427.html">http://www.muchs.cn/news27/296427.html</a>
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