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<title>将指定区域导出图片</title>
<script type="text/javascript" src="https://cdn.staticfile.org/html2canvas/0.4.0/html2canvas.js"></script>
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<script type="text/javascript">
// 导出图片
function CreatImg() {
console.log('test');
html2canvas(document.getElementById('view'), {
onrendered: function(canvas) {
// 创建一个canvas
// document.body.appendChild(canvas);
dataUrl=canvas.toDataURL("image/jpeg", 1.0);
DownLoadImg(dataUrl.replace("data:image/jpeg;base64,", ""))
},
});
}
function DownLoadImg(content){
// 格式
var imageType='png';
// 文件名
var fileName=Date.now();
var raw = window.atob(content);
var rawLength = raw.length;
var uInt8Array = new Uint8Array(rawLength);
for(var i = 0; i < rawLength; ++i) {
uInt8Array[i] = raw.charCodeAt(i);
}
var blob = new Blob([uInt8Array], {type:'image/'+imageType});
var aLink = document.createElement('a');
var evt = document.createEvent("HTMLEvents");
evt.initEvent("click", true, true);
aLink.download = fileName;
aLink.href = URL.createObjectURL(blob);
aLink.click();
}
</script>
<body>
<div id="view" style="background:#f2f2f2 100%; width: 600px;margin:50px auto;">
<p style="text-align: center;padding:15px 0 20px;font-size:17px;font-weight:bold;height: 0;">2022年高考志愿热门专业</p>
<table class="table">
<thead>
<tr>
<th style="width: 60px;vertical-align:middle;text-align:center;">序号</th>
<th style="width: 220px;vertical-align:middle;text-align:center;">专业</th>
<th style="width: 120px;vertical-align:middle;text-align:center;">专业代码</th>
<th style="width: 80px;vertical-align:middle;text-align:center;">学制 </th>
<th style="width: 110px;vertical-align:middle;text-align:center;">授予学位</th>
</tr>
</thead>
<tbody>
<tr>
<td style="vertical-align:middle;text-align:center;">1</td>
<td style="vertical-align:middle;text-align:center;">临床医学</td>
<td style="vertical-align:middle;text-align:center;">100201K</td>
<td style="vertical-align:middle;text-align:center;">五年</td>
<td style="vertical-align:middle;text-align:center;">医学学士</td>
</tr>
<tr>
<td style="vertical-align:middle;text-align:center;">2</td>
<td style="vertical-align:middle;text-align:center;">计算机科学与技术</td>
<td style="vertical-align:middle;text-align:center;">080901</td>
<td style="vertical-align:middle;text-align:center;">四年</td>
<td style="vertical-align:middle;text-align:center;">工学学士</td>
</tr>
<tr>
<td style="vertical-align:middle;text-align:center;">3</td>
<td style="vertical-align:middle;text-align:center;">软件工程</td>
<td style="vertical-align:middle;text-align:center;">080902</td>
<td style="vertical-align:middle;text-align:center;">四年</td>
<td style="vertical-align:middle;text-align:center;">工学学士</td>
</tr>
<tr>
<td style="vertical-align:middle;text-align:center;">4</td>
<td style="vertical-align:middle;text-align:center;">航空航天工程</td>
<td style="vertical-align:middle;text-align:center;">082001</td>
<td style="vertical-align:middle;text-align:center;">四年</td>
<td style="vertical-align:middle;text-align:center;">工学学士</td>
</tr>
<tr>
<td style="vertical-align:middle;text-align:center;">5</td>
<td style="vertical-align:middle;text-align:center;">汉语言文学</td>
<td style="vertical-align:middle;text-align:center;">050101</td>
<td style="vertical-align:middle;text-align:center;">四年</td>
<td style="vertical-align:middle;text-align:center;">文学学士</td>
</tr>
</tbody>
</table>
</div>
<input type="button" value="导出图片" onclick="CreatImg()" style="width: 120px;height: 50px;margin:20px auto;display: block;"><br/>
</body>
</html>
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