更新 target/mysql/conn.lua

target/mysql/conn.lua

@@ -138,4 +138,11 @@ end
 function mysql_conn:close()
     self.module:close()
 end
+--[[
+    取自身指针
+]]
+function mysql_conn:self()
+    return self.module:self()
+end
+
 return mysql_conn