热敏打印机第三方控件连续打印

循环等打印异常。解决方法如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>WEB打印控件LODOP的样例八:打印网页图片</title>
<script language="javascript" src="LodopFuncs.js"></script>
</head>
<body>

<p>3:按原图比例(不变形)缩放打印模式,看看<a href="javascript:myPreview3();">打印预览3</a>。</p>

<script language="javascript" type="text/javascript">
        var LODOP; //声明为全局变量
var count=0;
function myPreview3() {
LODOP=getLodop(); 
//LODOP.PRINT_INIT("打印控件功能演示_Lodop功能_打印图片3");
LODOP.SET_PRINT_PAGESIZE(1,580,500,0);
                LODOP.ADD_PRINT_TEXT(10,70,100,40,"溯源码");
LODOP.ADD_PRINT_BARCODE(22,48,128,106,"QRCode","65020100007001000060");
LODOP.ADD_PRINT_TEXT(110,24,325,40,"65020100007001000060")
LODOP.SET_PRINT_STYLEA(0,"FontSize",10);
LODOP.SET_PRINT_STYLEA(0,"Stretch",2);//按原图比例(不变形)缩放模式
LODOP.PRINT();
count=count+1;
if(count<2){
sleep(1000);
myPreview3();
}else{
count=0;
return;
}

};
function sleep(numberMillis) {
var now = new Date();
var exitTime = now.getTime() + numberMillis;
while (true) {
now = new Date();
if (now.getTime() > exitTime)
return;
}
}
</script>

</body>
</html>

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