diff --git a/scripts/build_pdf.sh b/scripts/build_pdf.sh
index 46a64ae387b63cfa487711efb8e161dadd8188f8..f9295f6c9d5d2426aac46b5fe5fa364e36cd4995 100755
--- a/scripts/build_pdf.sh
+++ b/scripts/build_pdf.sh
@@ -37,6 +37,7 @@ only_build_mogdb=no
 only_build_mogha=no
 
 
+
 function h1() {
     printf "\n${underline}${bold}${blue}[build] %s${reset}\n" "$@"
 }
@@ -73,6 +74,7 @@ function note() {
     printf "\n${underline}${bold}${blue}Note:${reset} ${blue}[build] %s${reset}\n" "$@"
 }
 
+# 生成PDF
 function _generate_pdf() {
     language=${1}
     DocFile=${2}
@@ -139,8 +141,10 @@ function _generate_pdf() {
     fi
 }
 
+# mogdb 多语言定义
 mogdbDocsLanguages=("zh" "en")
 
+# mogdb 版本定义
 mogdbDocsVersions=("v2.1")
 
 # 不能使用下划线