diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index af8090f..3a894a5 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -19,6 +19,30 @@
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@@ -31,7 +55,8 @@
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@@ -89,7 +114,7 @@
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@@ -106,7 +131,7 @@
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@@ -149,17 +174,17 @@
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diff --git a/04. Programming/QT/Application Icon.md b/04. Programming/QT/Application Icon.md
new file mode 100644
index 0000000..500757d
--- /dev/null
+++ b/04. Programming/QT/Application Icon.md	
@@ -0,0 +1,9 @@
+## Add icon of application
+1.  Create a `*.ico` file of whatever you want to use as a logo. I called mine `favicon.ico`.
+2.  Create a file named `yourapplication.rc`.
+3.  Add the following line to `yourapplication.rc`: `IDI_ICON1 ICON DISCARDABLE "favicon.ico"`.
+4.  Add the `*.rc` file to your buildsystem as a source file.
+5.  Make sure that your `*.exe` ships along side the `favicon.ico` file.
+
+### Source
+- [c++ - Set icon for Qt application built in Visual Studio - Stack Overflow](https://stackoverflow.com/questions/65818269/set-icon-for-qt-application-built-in-visual-studio)
diff --git a/04. Programming/万字避坑指南！C++ 的缺陷与思考（上）.md b/04. Programming/万字避坑指南！C++ 的缺陷与思考（上）.md
new file mode 100644
index 0000000..e69de29