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以下方法的功能是统计字符串中数字字符的个数。请在空白处填入适当内容，把程序补充完整。staticintcount(strings){intr=0;for(inti=0;i

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以下程序生成10个1000~2000之间的随机整数，并计算其中偶数的个数。请在空白处填上适当内容，把程序补充完整。staticvoidMain(string[]args){Randomr=newRandom();intx;intc=0;for(inti=0;i<10;i++){x=_if(_)c++;Console.WriteLine(x);}Console.WriteLine("c={0}",c)

下面程序运行的结果是struct Student { public int age; public string name; public Student(int age, string name) { this.age = age; this.name = name; } }class Program { static void Main(string[] args) { Student stu1 = new Student(18, "小方"); Student stu2 = new Student(24, "小刚"); stu2 = stu1; stu1.age = 30; stu1.name = "小燕"; Console.WriteLine("{1},{0}",stu2.age,stu2.name); } }

下面程序运行的结果是:publicclassA{publicvirtualvoidFun1(inti){Console.WriteLine(i);}publicvoidFun2(Aa){a.Fun1(1);Fun1(5);}}publicclassB:A{publicoverridevoidFun1(inti){base.Fun1(i+1);}}class Program { static void Main(string[] args) { B b = new B(); A a = new A(); a.Fun2(b); b.Fun2(a); Console.ReadKey(); } }

下面程序段输出的结果是什么static void Main(string[] args){ string [ ] arr1 = new string []{"高等数学","C#语言程序设计","面向对象程序设计","英语"};foreach (string a in arr1)Console.WriteLine(a);}