diff --git a/Tips.md b/Tips.md
new file mode 100644
index 0000000..6a93bcc
--- /dev/null
+++ b/Tips.md
@@ -0,0 +1,30 @@
+# Tips:
+1 绘制图形并保存后，应及时用‘close \handle’命令关闭图片，否则handle会于数组出现冲突。
+例如，会在运行至fig5 = Plot(x,y)时出错。因为1，2，3，4同时表示图片句柄
+
+```matlab
+x = [1,2,3,4];
+y = [0.1,0.2,0.3,0.4];
+fig1 = Plot(x,y);
+fig2 = Plot(x,y);
+fig3 = Plot(x,y);
+fig4 = Plot(x,y);
+fig5 = Plot(x,y);% error
+```
+
+应修改为
+
+```matlab
+x = [1,2,3,4];
+y = [0.1,0.2,0.3,0.4];
+fig1 = Plot(x,y);
+close 1
+fig2 = Plot(x,y);
+close 1
+fig3 = Plot(x,y);
+close 1
+fig4 = Plot(x,y);
+close 1
+fig5 = Plot(x,y);
+close 1
+```
\ No newline at end of file