ADD file via upload

1st.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int choice;
+
+    //显示菜单
+    printf("                              1.Input\n");
+    printf("                              2.Output\n");
+    printf("                              3.Order\n");
+    printf("                              4.Quit\n");
+
+    scanf("%c",&choice);
+
+    //根据用户选择输出信息
+    switch(choice)
+    {
+        case 'i':
+            printf("You are trying to Input info\n");
+            break;
+        case 'o':
+            printf("You are trying to Output info\n");
+            break;
+        case 'm':
+            printf("You are trying to Make things ordered\n");
+            break;
+        case 'q':
+            printf("You are about to Quit\n");
+            break;
+        default:
+            printf("Wrong input");
+    }
+  return 0;
+
+
+}