// MyClass3_6.java
public class MyClass3_6
{
   public static void main(String args[]) {
      int i,j,k=0;
      for(i=0,j=0;i<10 && j<20;i++,j+=5)
      {
         for(;k<5;)
         { k = k + 1; }
         System.out.println("i = " + i + " j = " + j);
      }
      System.out.println("退出for循環==> i = " + i);
      System.out.println("退出for循環==> j = " + j);
      System.out.println("退出for循環==> k = " + k);
   }
}