hzy.txt

hzy.txt

@@ -0,0 +1,59 @@
+package open;
+import java.util.Scanner;
+public class main {
+
+	public main() {
+	
+	}
+
+	public static void main(String[] args) {
+		double a,c; String b;
+		Scanner sc = new Scanner(System.in);
+		a=sc.nextDouble();
+		b=sc.next();
+		if(b.equals("sin")) {
+			sanjiao d=new sanjiao();
+			System.out.println(d.sanjiao("sin", a));
+		}
+		else if(b.equals("cos")) {
+			sanjiao d=new sanjiao();
+			System.out.println(d.sanjiao("cos", a));
+		}
+		else if(b.equals("tan")) {
+			sanjiao d=new sanjiao();
+			System.out.println(d.sanjiao("tan", a));
+		}
+		else if(b.equals("^")) {
+			zhishu d=new zhishu();
+			System.out.println(d.zhishu(a));
+		}
+		else if(b.equals("log")) {
+			duishu d=new duishu();
+			c=sc.nextDouble();
+			System.out.println(d.duishu(a, c));
+		}
+		else if(b.equals("+")) {
+			sizeyunsuan d=new sizeyunsuan();
+			c=sc.nextDouble();
+			System.out.println(d.add(a, c));
+		}
+		else if(b.equals("-")) {
+			sizeyunsuan d=new sizeyunsuan();
+			c=sc.nextDouble();
+			System.out.println(d.subtract(a, c));
+		}
+		else if(b.equals("*")) {
+			sizeyunsuan d=new sizeyunsuan();
+			c=sc.nextDouble();
+			System.out.println(d.multiply(a, c));
+		}
+		else if(b.equals("/")) {
+			sizeyunsuan d=new sizeyunsuan();
+			c=sc.nextDouble();
+			System.out.println(d.divide(a, c));
+		}
+		else System.out.println("错误");
+	}
+
+}
+