diff --git a/SanJiaoHanShu.java b/SanJiaoHanShu.java
new file mode 100644
index 0000000..3557a47
--- /dev/null
+++ b/SanJiaoHanShu.java
@@ -0,0 +1,37 @@
+package calculator;
+import java.util.*;
+import java.math.*;
+
+public class Calculate {
+
+	public static void main(String[] args) {
+		
+		//System.out.println("function:");  /*输入函数符号*/
+		Scanner function= new Scanner(System.in);	/*输入角度数*/
+		String str=function.nextLine();
+		
+		//System.out.println("radian:");
+		Scanner radian= new Scanner(System.in);
+		double d=radian.nextDouble();
+		
+		if(str.equals("sin")) {
+			System.out.println("="+Math.sin(Math.toRadians(d)));
+		}
+		else if(str.equals("cos")) {
+			System.out.println("="+Math.cos(Math.toRadians(d)));
+		}
+		else if(str.equals("tan")) {
+			System.out.println("="+Math.tan(Math.toRadians(d)));
+		}
+		else System.out.println("Error!");
+		
+		
+	}
+}
+
+
+
+
+
+
+