diff --git a/shell/update_op_brefore_compile.sh b/shell/update_op_brefore_compile.sh
index 1528b86..84550ca 100644
--- a/shell/update_op_brefore_compile.sh
+++ b/shell/update_op_brefore_compile.sh
@@ -1,31 +1,90 @@
 #!/bin/bash
 # 编译op前准备
-echo "Running update and install feed..."
-# update
-./scripts/feeds update -a
-./scripts/feeds install -a
-
-
-if [[ $1 == "-y" ]]; then
-  # 自动执行
-  echo "make defconfig"
-  make defconfig
-  echo "make download -j8"
-  make download -j8
-else
-  # 手动询问是否执行update2
-  read -n 1 -r -p "make defconfig now? (y/n) " answer
-  echo
-  if [[ $answer == [Yy] ]]; then
+
+# 更新feeds文件
+function update_feeds() {
+    echo "Running update and install feed..."
+    ./scripts/feeds update -a
+    ./scripts/feeds install -a
+}
+
+# 执行make defconfig
+function make_defconfig() {
     echo "make defconfig"
     make defconfig
-  fi
+}
 
-  # 手动询问是否执行update3
-  read -n 1 -r -p "make download -j8 now? (y/n) " answer
-  echo
-  if [[ $answer == [Yy] ]]; then
+function make_download() {
     echo "make download -j8"
     make download -j8
-  fi
+}
+# 根据参数执行相应操作
+# 1. -u|--update 更新feeds文件
+# 2. -d|--defconfig 执行make defconfig
+# 3. -m|--download 执行make download -j8
+# shift 命令用于对参数的移动(左移)
+all=false
+update=false
+defconfig=false
+download=false
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        -u|--update)
+            update=true
+            shift
+            ;;
+        -d|--defconfig)
+            defconfig=true
+            shift
+            ;;
+        -m|--download)
+            download=true
+            shift
+            ;;
+        -a)
+            all=true
+            shift
+            ;;
+        *)
+            echo "无效的选项: $1"
+            shift
+            ;;
+    esac
+done
+
+if $all || $update; then
+    update_feeds
+fi
+
+if $all || $defconfig; then
+    make_defconfig
+fi
+
+if $all || $download; then
+    make_download
 fi
+
+# if [[ $1 == "-y" ]]; then
+#   # 自动执行
+#   echo "make defconfig"
+#   make defconfig
+#   echo "make download -j8"
+#   make download -j8
+# else
+#   # 手动询问是否执行update2
+#   read -n 1 -r -p "make defconfig now? (y/n) " answer
+#   echo
+#   if [[ $answer == [Yy] ]]; then
+#     echo "make defconfig"
+#     make defconfig
+#   fi
+
+#   # 手动询问是否执行update3
+#   read -n 1 -r -p "make download -j8 now? (y/n) " answer
+#   echo
+#   if [[ $answer == [Yy] ]]; then
+#     echo "make download -j8"
+#     make download -j8
+#   fi
+# fi