json字符串解析成对象 ： var obj = JSON.parse(str)
对象转化成字符串：var str1 = JSON.stringify(obj1)
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<body><script>// 创建字符串str(格式严格)var str = '{"name":"jack","age":"100"}'console.log(str)// json字符串解析成对象var obj = JSON.parse(str)console.log(obj)// 调用值console.log(obj.name)// 前端给后端 var obj1 = {"name":"bob"}// 对象转化成字符串var str1 = JSON.stringify(obj1)console.log(obj1,str1)</script>
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