jsonと文字列は互いに変換して、偏っていますが、面接は使うことができます
2917 ワード
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content=" - zhinengshe.com" />
<meta name="copyright" content=" - zhinengshe.com" />
<title> - www.zhinengshe.com</title>
<script>
var strJson = '{"username":"zns","pwd":123456,"age":18}';
var strJson = "{'username':'zns','pwd':123456,'age':18}";
// eval
console.log(typeof strJson) //string
var json = eval("("+strJson+")");// json
console.log(typeof json) //object
document.write(JSON.stringify(json));
var strJson = JSON.stringify(json);//json
console.log(strJson) //{"username":"zns","pwd":123456,"age":18}
console.log(typeof strJson) //string
</script>
</head>
<body>
</body>
</html>