更换vpn菜单和源检测方法

Menus/Sources.sh

@@ -23,7 +23,7 @@ read -p "请输入：" pick
 
 if [[ -z $pick ]];then
         declare url='http://mirrors.ustc.edu.cn'
-elif [[ ${pick} -le 0 || ${pick} -gt  ${#sources_dick[*]} ]];then
+elif [[ ${pick} =~ [1-${#sources_dick[@]}] ]];then
           echo "输入错误"
           exit
 else

Menus/Vpn.sh

@@ -16,7 +16,7 @@ for i in "${!vpn_array[@]}";do
 done
 read -p "请输入要选择的序号：" vpn_pick
 
-if [[ $vpn_pick =~ [1-$vpn_number] ]];then
+if [[ $vpn_pick =~ [1-${#vpn_array[@]}] ]];then
   eval "${vpn_array[${vpn_index[$vpn_pick]}]}"
   echo "安装完成"
 else