JSON.stringify，定义数组前需 data=[]

<script>

alert("test");

var test={};

test.count=3;

alert(test.count);

test.data=[];

test.data[0]=1;

test.data[1]=2;

alert(test.data[0]+","+test.data[1]);

var toStr = JSON.stringify(test);

alert(toStr);

document.write(toStr);

 

</script>

{"count":3,"data":[1,2]}