主函数

main.java

@@ -0,0 +1,47 @@
+package sxv;
+import java.util.*;
+import java.io.*;
+public class test {
+
+	public static void main(String[] args) {
+		// TODO 自动生成的方法存根
+String a;
+double f,y,h,p,re;
+String q="log";
+String j="/";
+String k="^";
+String l="*";
+System.out.println("符号");
+Scanner D=new Scanner(System.in);
+a=D.next();
+System.out.println("数1");
+Scanner t=new Scanner(System.in);
+f=t.nextDouble();
+System.out.println("数2");
+Scanner o=new Scanner(System.in);
+p=o.nextDouble();
+if (a.equals(q))
+{
+	ds z=new ds();
+	re=z.d(f, p);
+}
+else if(a.equals(j))
+{
+	chu chuu=new chu();
+			re=chuu.ch(f, p);
+}
+else if(a.equals(k))
+{
+	mi mii =new mi();
+			re=mii.m(f, p);
+}
+else
+{
+	chen chenn=new chen();
+			re=chenn.che(f, p);
+}
+	System.out.println("="+re);
+	}
+
+}
+