[JavaScript知识库]JSON.stringify（xxnull4） 简单的格式对齐

var testData = {
    lannan91:{
        Name:"lannan91",
        Age:91,
        Id:123456789,
        Tel:110120119,
    },
    nannal:{
        Name:"nannal",
        Age:19,
        Id:987654321,
        Tel:911021011,
    },
    "Guo'degang":{
        Name:"Guo'degang",
        Birth:19730118,
        Apprentice:{
            "Yue'yunpeng":{
                Name:"Yue'yunpeng",
                Birth:19850415,
                Apprentice:{
                    Name:"Shang'xiaoju",
                    Birth:19950829,
                    Home:"henan",
                },
                Height:175,
                Home:"henan",
            },
            "Tao'yang":{
                Name:"Tao'yang",
                Birth:19970927,
                Home:"jiangxi",
            }
        },
        Height:168,
        Home:"tianjin",
    }
}

如果你是 console.log(JSON.stringify(testData),如下显示：

但是你如果这样console.log(JSON.stringify(testData, null, 4)),就会有神奇的事情发生，看下图