javascript处理json字符串和json对象的类（含示例，最终版本）

<script src=howwajson.js></script> <textarea cols=100 rows=20> '{"姓名":"张三","性别":"男","age":30,职务:"普通员工",离职时间:""}' {"a":1,"b":2,"c":3,"d":[1,2,"c"],e:["www","email",[1,2,3],"r"],"k":"88",f:{"China":"cn","Japan":"jp"},"y":"999"} </textarea> <script> // ============================================ // 测试 var jsonstr = '{"姓名":"张三","性别":"男","age":30,职务:"普通员工",离职时间:""}'; var b; // 使用方法一 b = howwaJson.string2json1(jsonstr); if (b!=null){ alert("方法1:姓名="+b["姓名"]+"\n性别="+b.性别+"\n年龄="+b["age"]+"\n职务="+b.职务+"\n离职时间:"+b.离职时间); } else{ alert(null); } // 使用方法二 b = howwaJson.string2json2(jsonstr); if (b!=null){ alert("方法2:姓名="+b["姓名"]+"\n性别="+b.性别+"\n年龄="+b["age"]+"\n职务="+b.职务); } else{ alert(null); } // 使用方法三 b = howwaJson.string2json3(jsonstr); if (b!=null){ alert("方法3:姓名="+b["姓名"]+"\n性别="+b.性别+"\n年龄="+b["age"]+"\n职务="+b.职务); } else{ alert(null); } // 转换一个复杂的json字符串 var jsond = '{"a":1,"b":2,"c":3,"d":[1,2,"c"],e:["www","email",[1,2,3],"r"],"k":"88",f:{"China":"cn","Japan":"jp"},"y":"999"}'; b = howwaJson.string2json1(jsond); if (b != null) { alert("b.d[2]="+b.d[2]+"\nb.f.China="+b.f.China+"\nb.k="+b["k"]+"\nb.y="+b.y); } else { alert(null); } // 测试：将简单的json对象转换成字符串 var d = {"a":1,"b":2,"c":3,"d":"aaa"} d["t"]="yyyyyyy"; //增加一个属性 alert( howwaJson.simplejson2string(d) ); // json对象的构造 var nl="年龄"; var dd ={}; dd["t"]="yyyyyyy"; dd.y="zzzzz"; dd.a="333"; dd.姓名= {}; // json嵌套 dd.姓名.姓="张"; dd.姓名.名="三"; dd["性别"]="男"; dd[nl]=30; // 看看构造的结果 alert( "dd="+howwaJson.json2string(dd) ); // 测试：将复杂的json对象转换成字符串 var Ojson = {"a":1,"b":2,"c":3,"d":[1,2,"c"],e:["www","email",[1,2,3],"r"],"k":"88",f:{"China":"cn","Japan":"jp"},"y":"999","w":""}; alert( howwaJson.json2string(Ojson) ); </script>