html代碼
<van-uploader preview-size="300px" style="width:300px;display:block;margin:20px auto;" v-model="fileList" :after-read="uploadact" @delete="delPic" :preview-full-image="false" :max-count="1" upload-text="點擊上傳身份證正面照片" capture="camera" />
js代碼
uploadact(file){ var arr = file.content.split(','), mime = arr[0].match(/:(.*?);/)[1], bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n); while (n--) { u8arr[n] = bstr.charCodeAt(n); } var f = new Blob([u8arr], { type: mime }); var reader = new FileReader(); reader.onload = function (e) { var data = e.target.result; //加載圖片獲取圖片真實寬度和高度 var image = new Image(); image.onload=function(){ var width = image.width; var height = image.height; alert(width+'======'+height+"====="+f.size); }; image.src= data; }; reader.readAsDataURL(f); }