发布于 2017-02-20 02:08:40 | 163 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
如何使用js生成pdf文件呢？相信很多朋友都被这一问题迷惑着，下面由phperz小编通过本文给大家简单介绍下。
可以使用javascript生成PDF的类库–jsPDF,先下载jsPDF-0.9.0rc2下载地址：;请点这里 ,以下是完整实例代码:
<!doctype>
<html>
<head>
<title>jsPDF</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script type="text/javascript" src="js/jquery/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="js/jquery/jquery-ui-1.8.17.custom.min.js"></script>
<script type="text/javascript" src="../jspdf.js"></script>
</head>
<body>
<iframe frameborder="0" width="500" height="400"></iframe>
<script>
$(document).ready(function() {
var pdf = new jsPDF('p','in','letter')
, sizes = [12, 16, 20]
, fonts = [['Times','Roman'],['Helvetica',''], ['Times','Italic']]
, font, size, lines
, margin = 0.5 // inches on a 8.5 x 11 inch sheet.
, verticalOffset = margin
, loremipsum = ' ipsum dolor sit amet, consectetur adipiscing elit. Phasellus id eros turpis. Vivamus tempor urna vitae sapien mollis molestie. Vestibulum in lectus non enim bibendum laoreet at at libero. Etiam malesuada erat sed sem blandit in varius orci porttitor. Sed at sapien urna. Fusce augue ipsum, molestie et adipiscing at, varius quis enim. Morbi sed magna est, vel vestibulum urna. Sed tempor ipsum vel mi pretium at elementum urna tempor. Nulla faucibus consectetur felis, elementum venenatis mi mollis gravida. Aliquam mi ante, accumsan eu tempus vitae, viverra quis justo.\n\nProin feugiat augue in augue rhoncus eu cursus tellus laoreet. Pellentesque eu sapien at diam porttitor venenatis nec vitae velit. Donec ultrices volutpat lectus eget vehicula. Nam eu erat mi, in pulvinar eros. Mauris viverra porta orci, et vehicula lectus sagittis id. Nullam at magna vitae nunc fringilla posuere. Duis volutpat malesuada ornare. Nulla in eros metus. Vivamus a posuere libero.'
// Margins:
pdf.setDrawColor(0, 255, 0)
.setLineWidth(1/72)
.line(margin, margin, margin, 11 - margin)
.line(8.5 - margin, margin, 8.5-margin, 11-margin)
// the 3 blocks of text
for (var i in fonts){
if (fonts.hasOwnProperty(i)) {
font = fonts[i]
size = sizes[i]
lines = pdf.setFont(font[0], font[1])
.setFontSize(size)
.splitTextToSize(loremipsum, 7.5)
// Don't want to preset font, size to calculate the lines?
// .splitTextToSize(text, maxsize, options)
// allows you to pass an object with any of the following:
// {
// 'fontSize': 12
// , 'fontStyle': 'Italic'
// , 'fontName': 'Times'
// }
// Without these, .splitTextToSize will use current / default
// font Family, Style, Size.
//console.log(lines);
pdf.text(0.5, verticalOffset + size / 72, lines)
verticalOffset += (lines.length + 0.5) * size / 72
}
}
var string = pdf.output('datauristring');
$('iframe').attr('src', string);
});
</script>
</body>
</html>以上内容给大家介绍了JavaScript代码生成PDF文件的方法，希望对大家有所帮助！