标签：eof his href ret css === == jquer function
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title></title> <link rel="stylesheet" href=""> </head> <body> <input type="file" class="file" name="imgfile" id="imgfile" placeholder="请选择文件"> <img src="" id="showImg" > <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script> <script> var input = document.getElementById("imgfile"); //检测浏览器是否支持FileReader if (typeof (FileReader) === ‘undefined‘) { result.innerHTML = "抱歉，你的浏览器不支持 FileReader，请使用现代浏览器操作！"; input.setAttribute(‘disabled‘, ‘disabled‘); } else { //开启监听 input.addEventListener(‘change‘, readFile, false); } function readFile() { var file = this.files[0]; //限定上传文件的类型，判断是否是图片类型 if (!/image\/\w+/.test(file.type)) { alert("只能选择图片"); return false; } var reader = new FileReader(); reader.readAsDataURL(file); reader.onload = function (e) { base64Code=this.result; //把得到的base64赋值到img标签显示 $("#showImg").attr("src",base64Code); } } </script> </body> </html>
标签：eof his href ret css === == jquer function
原文地址：https://www.cnblogs.com/JeneryYang/p/8953775.html
