json数组的js增删改

来源：互联网发布：北京工业大学未来网络编辑：程序博客网时间：2024/06/09 14:13
代码如下：
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Document</title><script type="text/javascript">  var jsonObj2 = { teacher: [    { name: "jordan", sex: "m", age: "40" },    { name: "bryant", sex: "m", age: "28" },    { name: "McGrady", sex: "m", age: "27" }  ]};   var jsonObj2New = {};     //invoke the update    updateData("jordan");    var persons = jsonObj2.teacher;    for (var i = 0; i < persons.length; i++) {      var cur_person = persons[i];      alert(cur_person.sex);    }     //invoke the delete    deleteData("jordan");    var persons = jsonObj2.teacher;    for (var i = 0; i < persons.length; i++) {      var cur_person = persons[i];      alert(cur_person.sex);    }     //push     var temp = { name: "kenny", sex: "m", age: "25" };    jsonObj2.teacher.push(temp);     var persons = jsonObj2.teacher;    for (var i = 0; i < persons.length; i++) {      var cur_person = persons[i];      alert(cur_person.name);    }      function updateData(name) {    var persons = jsonObj2.teacher;    //alert(name);    for (var i = 0; i < persons.length; i++) {      var cur_person = persons[i];      if (cur_person.name == name) {        persons[i].sex = "f";      }    }  }   function deleteData(name) {    var persons = jsonObj2.teacher;    //alert(name);    for (var i = 0; i < persons.length; i++) {      var cur_person = persons[i];      if (cur_person.name == name) {        jsonObj2.teacher.splice(i, 1);      }    }  }  </script></head><body><input type="button" id="btn" value="1234" ></body></html>
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