下列变量名中，合法的是（ ） A: STU_NAME B: _NAME C: -NAME D: NAME+AGE

下列Json格式对象正确的是 A: { name:"lin",age:19} B: { name="lin",age=19} C: { name:"lin";age:19} D: { name="lin";age=19}

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 }

【单选题】以下哪个是合法的JSON对象结构( ) A: {"name":"tom","age":"23"} B: {"name":tom,"age":23} C: {name:"tom","age":23} D: {name:tom,"age":23}

下列是正确的Json格式对象的选项是: （ ） A: [name:”James”, age:18] B: [name=”James”, age=18] C: {name=”James”, age=18} D: {“name”:”James”, “age”:18}

1）运行下面一段代码，能正确输出的是(C)。(选择两项) A: A.int age=20;string name=”如花”;<br>Console.write(“姓名”+name+”年龄”+age); B: B.int age=20;string name=”如花”;<br>Console.write(“姓名{0},年龄为{1}”,name,age); C: C.int age=20;string name=”如花”;<br>Console.write(name,age); D: D.int age;string name;<br>Console.write(“姓名”+name+”年龄”+age);

下列（ ）方法定义和调用的代码是正确的。 A: static void Introduce(string gender = "男", string name, int age = 18){} Introduce(name: "alex", age: 20); B: static void Introduce(string name, int age = 18, string gender = "男"){} Introduce(age: 20, name: "alex"); C: static void Introduce(string gender = "男", string name, int ago = 18){} Introduce(age: 20, name: "alex"); D: static void Introduce(string name, int age = 18, string gender = "男"){}Introduce(name: "alex", age: 20);

1. LAST NAME: FIRST NAME: OCCUPATION: NATIONALITY: AGE:

在C#中,下列结构或者类定义正确的是（选一项） A: public struct Person{ string name； int age； public void ShowName(){ Console.WriteLine(name)； }} B: public struct Person{ string name； int age； public Person(){ Conssole.WriteLine(name)； }} C: public class Person{ string name； int age； public Person(){ Conssole.WriteLine(name)； }} D: public class Person{ string name； int age； public Person(string name){ Conssole.WriteLine(name)； }}

【多选题】以下哪些是合法的josn数据表达( ) A: { "name": "zhangsan", "address":{ "city":"Beijing", "street":"Xisanqi", "postcode":100096 } } B: { "name":"zhangsan", "hobby":["篮球","羽毛球","游泳"]} C: {"name":"tom","age":"23"} D: [{"name":"tom","age":12},{"name":"rose","age":15}]