摘要:
1.String类的IndexOf()方法返回的类型是?(选择2项) BC A.Int16 B.Int32 C.int D.long 2.下列关于变量定义正确的是:C A. float f = 3.14; B. bool b = “false”; C. decimal d = 12.30M; D. 阅读全文
摘要:
string str = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM1234567890"; Random ran = new Random(); int r = ran.Next(0, str.Length); string a = 阅读全文
摘要:
要判断时间合不合格,闰不闰年啊,然后还有Timespan 类型 -- Console.Write("请输入年:"); int n = int.Parse(Console.ReadLine()); Console.Write("请输入月:"); int y = int.Parse(Console.Re 阅读全文