这个题让我更加明白了类创建对象的实质 代码中用到:1.对象作形参;2.对象作返回值 以下用代码具体分析: class Point1{ public double x; public double y; Point1(){} public Point1(double x,double y){ this.x=x; this.y=y; } public void show(){ System.out.println("x="+x+","+"y="+y)…
异常(栈里必须有activity的flag标识): 05-02 08:43:36.173: E/AndroidRuntime(3328): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? 解决办法: Inte…
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication7 { class Program { static void Main(string[] args) { string result; Console.WriteLine("请输入用户名"); str…