标签：图片预览 var const his creat ati put error: data
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <title>Page Title</title> <meta name="viewport" content="width=device-width, initial-scale=1" /> <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script> </head> <body> <form action="" method=""> <label> <input type="file" onchange="upfile(this, ‘#form01234‘);PreviewImage(this, ‘file0123‘);" /> <div id="file0123"></div> <input type="hidden" name="ico" id="form01234" /> </label> </form> <script> const url = "index.php"; //处理图片的接口 //选中图片预览 function PreviewImage(imgFile, id) { if (imgFile.value != undefined) { var ext = imgFile.value.substring(imgFile.value.lastIndexOf(".")).toLowerCase(); if (!ext.match(/(?:jpg|jpeg|gif|png|bmp)$/)) { imgFile.focus(); return; } document.getElementById(id).innerHTML = ‘<img width="100%" src="‘ + window.URL.createObjectURL(imgFile.files[0]) + ‘" />‘; } } function upfile(file, form) { var formData = new FormData(); formData.append("file", $(file)[0].files[0]); $.ajax({ url, type: "POST", data: formData, processData: false, // 告诉jQuery不要去处理发送的数据 contentType: false, AccessControlAllowOrigin: "*", // 告诉jQuery不要去设置Content-Type请求头 beforeSend: function() { console.log("正在进行，请稍候"); }, success: function(data) { var json = JSON.parse(data); $(form).val(json["url"]); }, error: function(data) { console.log("上传失败"); } }); } </script> </body> </html>
标签：图片预览 var const his creat ati put error: data
原文地址：https://www.cnblogs.com/yg-home/p/10321522.html
