测试1.cpp

测试1.cpp

@@ -0,0 +1,21 @@
+#include<stdio.h>
+#include<math.h>
+#define pi 3.14
+
+int main()
+{
+	int a;
+	double b;
+	printf("请输入你要计算的角度:");
+    scanf("%d",&a);
+    b=a*pi/180;
+	printf("%f\n",sin(b)) ;
+	printf("%f\n",cos(b)) ;
+	printf("%f\n",tan(b)) ;
+	return 0;
+
+ } 
+
+
+ 
+