指定json格式化为字符串

指定将json格式化为字符串，可以使用JSON.stringify()方法。该方法可以将JavaScript中的对象转换为JSON格式的字符串。例如，如果有一个名为person的对象，可以使用以下代码将其转换为字符串：
var person = { username: 'luohao', password: 123456, location: 'whu' };
var json = JSON.stringify(person);
console.log(json);
输出的结果将是{"username":"luohao","password":123456,"location":"whu"}。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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