diff --git "a/doc/\345\275\255\346\260\270\347\233\233" "b/doc/\345\275\255\346\260\270\347\233\233"
new file mode 100644
index 0000000000000000000000000000000000000000..600dc96d52bde62883b0430e034b0c0026ea30eb
--- /dev/null
+++ "b/doc/\345\275\255\346\260\270\347\233\233"
@@ -0,0 +1,10 @@
+public class Main {
+    public static void main(String[] args) {
+
+        for (int i = 1; i < 10; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print(j + "*" + i + "=" + i * j + "\t");
+
+            }
+            System.out.println();
+        }
\ No newline at end of file