diff --git a/initialize.sh b/initialize.sh
index 3259dc3..0f9ad2d 100644
--- a/initialize.sh
+++ b/initialize.sh
@@ -17,11 +17,45 @@ install_homebrew() {
     fi
 }
 
+install_zsh() {
+    # Check if zsh is already installed
+    if command -v zsh &> /dev/null; then
+        echo "zsh is already installed."
+    else
+        # Check the operating system
+        if [ "$(uname)" == "Darwin" ]; then
+            # macOS specific installation
+            brew install zsh
+        elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
+            # Linux specific installation
+            sudo apt-get install zsh  # 适用于 Debian/Ubuntu 等
+            # 或者使用其他 Linux 发行版的安装命令
+        else
+            echo "Unsupported operating system. Cannot install zsh."
+            exit 1
+        fi
+    fi
+
+    # Set zsh as the default shell
+    if [ "$(uname)" == "Darwin" ]; then
+        sudo dscl . -create /Users/$(whoami) UserShell /usr/local/bin/zsh
+    elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
+        chsh -s $(which zsh)
+    else
+        echo "Unsupported operating system. Cannot set zsh as default shell."
+        exit 1
+    fi
+
+    echo "Zsh installation completed and set as the default shell. Please restart your terminal."
+}
+
+
 # install home-brew
 install_homebrew
 
 
 # install zsh
+install_zsh
 
 # install oh-my-zsh
 #git clone https://git.mingzailao.live/mingzailao/ohmyzsh.git ~/.oh-my-zsh