array to json javascript数组转换为json（转）

<script> 

function arrayToJson(o) { 

var r = []; 

if (typeof o == "string") return "\"" + o.replace(/([\'\"\\])/g, "\\$1").replace(/(\n)/g, "\\n").replace(/(\r)/g, "\\r").replace(/(\t)/g, "\\t") + "\""; 

if (typeof o == "object") { 

if (!o.sort) { 

for (var i in o) 

r.push(i + ":" + arrayToJson(o[i])); 

if (!!document.all && !/^\n?function\s*toString\(\)\s*\{\n?\s*\[native code\]\n?\s*\}\n?\s*$/.test(o.toString)) { 

r.push("toString:" + o.toString.toString()); 

} 

r = "{" + r.join() + "}"; 

} else { 

for (var i = 0; i < o.length; i++) { 

r.push(arrayToJson(o[i])); 

} 

r = "[" + r.join() + "]"; 

} 

return r; 

} 

return o.toString(); 

} 

var str2="脚本之家,sc.jb51.net,素材下载,百度,456,456,456"; 

var arr1=str2.split(","); 

alert(arrayToJson(arr1)); 

</script>