• 2022-05-29
    以下语法符合JSON格式的是( )。
    A: { name:'Mary';age:20, }
    B: { name:'Mary';age:20 }
    C: { name:'Mary', age:20, }
    D: { name:'Mary', age:20 }
  • D

    内容

    • 0

      NSMutableDictionary *mutableDic = &#91;NSMutableDictionary dictionaryWithObjectsAndKeys:@"lisi",@"name",&#91;NSNumber numberWithInt:20&#93;,@"age", nil&#93;; <br/>&#91;mutableDic setObject:@"89" forKey:@"num"&#93;;<br/>NSLog(@"mutableDic4 = %@“,mutableDic);<br/>控制台打印是: A: name = lisi;num = 89 B: age = 20;name = lisi;num = 89 C: age = 20;name = lisi D: age = 20

    • 1

      以下自定义数据类型的语句中,正确的是 A: A.Type student ID As String * 20 name As String * 10 age As Integer End student B: B.Type student ID As String * 20 name As String * 10 age As Integer End Type C: C.Type student ID As String name As String age As Integer End student D: C.Type ID As String * 20 name As String * 10 age As Integer End Type student

    • 2

      访问如下json对象中的name属性的方式是:var stu={name:"张三",age:20} A: stu[name] B: stu.name C: stu-&gt;name D: this.name

    • 3

      语句json.dumps({'name':'David', 'age':20})将一个Python对象转为一个JSON字符串。

    • 4

      ________ name is Mary, and ________ name is Tom.