diff --git a/config/config.sh b/config/config.sh
index 0b5058a..c814291 100644
--- a/config/config.sh
+++ b/config/config.sh
@@ -1,4 +1,13 @@
 #!/bin/sh
 
+# the language of your project
 lang="go"
+
+# the token of DINGDING
 dingToken="example"
+
+# the loading speed of commit, push, etc.
+loadingSpeed=4
+
+# the protect rules
+protectMainSwitch="on"
diff --git a/hooks/commit-msg b/hooks/commit-msg
index 32b7e2e..86d30ea 100755
--- a/hooks/commit-msg
+++ b/hooks/commit-msg
@@ -8,10 +8,12 @@ fi
 printLogo
 echo "温馨提示: 请务必在提交代码前确认分支是否正确 (Warm tips: please make sure the branch is correct before committing)"
 
-BRANCH_NAME=$(git symbolic-ref --short -q HEAD)
-if [ "${BRANCH_NAME}" == "main" ] || [ "${BRANCH_NAME}" == "master" ]; then
-  echo "禁止直接再主分支提交代码, 已中断! (You are not allowed to commit at main branch, has been stopped !)"
-  exit 1
+if [ "${protectMainSwitch}" == "on" ] ; then
+  BRANCH_NAME=$(git symbolic-ref --short -q HEAD)
+  if [ "${BRANCH_NAME}" == "main" ] || [ "${BRANCH_NAME}" == "master" ]; then
+    echo "禁止直接再主分支提交代码, 已中断! (You are not allowed to commit at main branch, has been stopped !)"
+    exit 1
+  fi
 fi
 echo "> 提交本地 (your commit branch): \033[33m${BRANCH_NAME}\033[0m"
 
diff --git a/hooks/post-checkout b/hooks/post-checkout
index fb10452..d5885bf 100755
--- a/hooks/post-checkout
+++ b/hooks/post-checkout
@@ -5,11 +5,15 @@ if [ "${POSTUREPATH}" == "" ]; then
 fi
 . $POSTUREPATH/include/function.sh
 
+newBranch=$(git reflog | awk 'NR==1{ print $8; }')
+changeDirection=$(git reflog | awk 'NR==1{ print $6 " -> " $8; exit }')
+
+if [ "${newBranch}" == "" ] || [ "${changeDirection}" == "" ] ; then
+  exit 0
+fi
+
 printLogo
 echo "温馨提示: 请及时拉取分支的最新代码 (Warm tips: Please pull the latest code in time)"
 
-newBranch=$(git reflog | awk 'NR==1{ print $8; }')
 echo "> 当前分支: \033[33m${newBranch}\033[0m"
-
-changeDirection=$(git reflog | awk 'NR==1{ print $6 " -> " $8; exit }')
 echo "> 分支切换顺序 (the direction of branch switch): \033[33m${changeDirection}\033[0m"
diff --git a/include/function.sh b/include/function.sh
index e06dff4..9562723 100644
--- a/include/function.sh
+++ b/include/function.sh
@@ -115,12 +115,25 @@ writeCommitLog(){
 
 # 加载中
 loading(){
+  sleepSeconds=0.2
+  if [ "${loadingSpeed}" == 1 ]; then
+    sleepSeconds=0.2
+  elif [ "${loadingSpeed}" == 2 ]; then
+    sleepSeconds=0.1
+  elif [ "${loadingSpeed}" == 3 ]; then
+    sleepSeconds=0.05
+  elif [ "${loadingSpeed}" == 4 ]; then
+    sleepSeconds=0.025
+  elif [ "${loadingSpeed}" == 5 ]; then
+    sleepSeconds=0.01
+  fi
+
   b=''
   i=0
   while [ $i -le 100 ]
   do
    printf "\033[32m""[%-50s] %d%%""\033[0m""\r" "$b" "$i";
-   sleep 0.2
+   sleep $sleepSeconds
    ((i=i+2))
    b+='#'
   done