JS 生成二维码:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="referrer" content="always" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="renderer" content="webkit" />
<meta name="keywords" content="JS 生成二维码" />
<meta name="description" content="JS 生成二维码" />
<title>JS 生成二维码 -by wgscd</title>
</head>
<body>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery.qrcode/1.0/jquery.qrcode.min.js"></script>
<div id="output"></div>
<script>
// 转中文内容UTF-8
function toUtf8(str) {
var out, i, len, c;
out = "";
len = str.length;
for (i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}
// 设置二维码参数
function make() {
$('#output').qrcode({
render: "table", // 设置渲染方式(有两种方式 table和canvas，默认是canvas）
width: 200, // 宽度
height: 200, // 高度
background: "#FFFFFF", // 背景颜色
foreground: "#000000", // 前景颜色
correctLevel: 0, // 纠错等级
src: 'images/logo4.png',
text: 'http://www.baidu.com/888'
//text: toUtf8("二维码生成前端插件：jquery.qrcode.min.js") // 任意内容
});
}
make();
</script>
<center>
<p>JS 生成二维码</p>
</center>
</body>
</html>
标签：String,JS,生成,二维码,out,fromCharCode From： https://www.cnblogs.com/wgscd/p/18329038