<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
function add() {
var arr=new Array(0,0,0);
var maxNum = 10;
var minNum = 0;
while(arr[0]==arr[1]){
for(var i=0;i<=1;i++){
arr[i] = Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum;
}
}
arr[2] = Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum;
while(arr[0]==arr[2]||arr[1]==arr[2] ){
arr[2] = Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum;
}
document.write("arr[0]:"+arr[0]+"<br>");
document.write("arr[1]:"+arr[1]+"<br>");
document.write("arr[2]:"+arr[2]+"<br>");
}
</script>
</head>
<body>
<input type="button" value="submit" onclick="add()"/>
<div id="piechart" style="width: 900px; height: 500px;"></div>
</body>
</html>
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