在JS中我们可以直接定义一个对象:
复制代码 代码如下:
var obj={name:"蓝色",age:10};

上面其实就是所谓的JSON了,我引用下别人的复杂点的例子:
复制代码 代码如下:
{ firstName: "Brett", lastName:"McLaughlin", email: "brett@jb51.net" }

复制代码 代码如下:
{ people: [
{ firstName: "Brett", lastName:"McLaughlin", email: "brett@jb51.net" },
{ firstName: "Jason", lastName:"Hunter", email: "jb51.net" },
{ firstName: "Elliotte", lastName:"Harold", emai": "elharo@jb51.net" }
]}
{ people1: [
{ firstName: "Brett", lastName:"McLaughlin", email: "brett@jb51.net" },
{ firstName: "Jason", lastName:"Hunter", email: "jb51.net" },
{ firstName: "Elliotte", lastName:"Harold", emai": "elharo@jb51.net" }
],
people2: [
{ firstName: "Brett", lastName:"McLaughlin", email: "brett@jb51.net" },
{ firstName: "Jason", lastName:"Hunter", email: "jb51.net" },
{ firstName: "Elliotte", lastName:"Harold", emai": "elharo@jb51.net" }
],
people3: [
{ firstName: "Brett", lastName:"McLaughlin", email: "brett@jb51.net" },
{ firstName: "Jason", lastName:"Hunter", email: "jb51.net" },
{ firstName: "Elliotte", lastName:"Harold", emai": "elharo@jb51.net" }
]
}

2.后台传输进来的满足JSON条件的文本格式化。
因为JSON最大的用途是AJAX应用,因此关键是怎样把文本转换成javascript对象,假设我们请求回的文本为data,那么我们如下解析:
复制代码 代码如下:
data=data.replace(/\n | \r/g,"");
var obj=eval('('+data+')');

因为我们后台输出的时候会把空格和回车符也输出,因此这里要用正则替换掉,然后用eval转换成对象就可以调用了。

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