具體代碼如下所示：
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>html2canvas_download</title> <style> a { cursor: pointer; color: rgb(85, 26, 139); text-decoration: underline; } </style> </head> <body> <div id="oDiv" style="width: 300px; height: 300px; margin: 10px; background: red; border: 5px solid gray;"> <h1>hello world!</h1> </div> <!-- <script type="text/javascript" src="../dist/html2canvas.js"></script> --> <script src="https://cdn.bootcss.com/html2canvas/0.5.0-beta4/html2canvas.min.js"></script> <script type="text/javascript"> var oDiv = document.getElementById('oDiv'); // body截圖 // html2canvas(document.body).then(function(canvas) { // document.body.appendChild(canvas); // }); html2canvas(oDiv).then(function(canvas) { document.body.appendChild(canvas); var oCavans = document.getElementsByTagName('canvas')[0]; var strDataURI = oCavans.toDataURL(); downLoadFn(strDataURI); }); //判斷瀏覽器類型 function myBrowser() { var userAgent = navigator.userAgent; //取得瀏覽器的userAgent字符串 var isOpera = userAgent.indexOf("Opera") > -1; if(isOpera) { return "Opera" }; //判斷是否Opera瀏覽器 if(userAgent.indexOf("Firefox") > -1) { return "FF"; } //判斷是否Firefox瀏覽器 if(userAgent.indexOf("Chrome") > -1) { return "Chrome"; } if(userAgent.indexOf("Safari") > -1) { return "Safari"; } //判斷是否Safari瀏覽器 if(userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera) { return "IE"; }; //判斷是否IE瀏覽器 if(userAgent.indexOf("Trident") > -1) { return "Edge"; } //判斷是否Edge瀏覽器 } //IE瀏覽器圖片保存本地 function SaveAs5(imgURL) { var oPop = window.open(imgURL, "", "width=1, height=1, top=5000, left=5000"); for(; oPop.document.readyState != "complete";) { if(oPop.document.readyState == "complete") break; } oPop.document.execCommand("SaveAs"); oPop.close(); } // chrome14+,firefox20+,pera15+,Edge 13+,Safari未實現(xiàn) function download(strDataURI) { var link = document.createElement('a'); link.innerHTML = 'download_canvas_image'; link.download = 'mypainting.png'; link.addEventListener('click', function(ev) { link.href = strDataURI; }, false); document.body.appendChild(link); }; function downLoadFn(url) { if(myBrowser() === "IE" || myBrowser() === "Edge") { SaveAs5(url); } else { download(url); } } </script> </body></html>總結(jié)
以上所述是小編給大家介紹的使用HTML截圖并保存為本地圖片的實現(xiàn)代碼，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對VeVb武林網(wǎng)網(wǎng)站的支持！
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