diff --git a/lib/xy.h b/lib/xy.h
index 2faff3a9..6475006b 100644
--- a/lib/xy.h
+++ b/lib/xy.h
@@ -508,10 +508,11 @@ _xy_str_to_terminal_style (int style, const char *str)
       color_fmt_str = "\e[9m%s\e[0m"; break;
     }
 
-
+  // 标签后第一句必须为statement，否则会编译不通过
+  size_t len;
 new_str:
   // -2 把中间%s减掉
-  size_t len = strlen (color_fmt_str) - 2;
+  len = strlen (color_fmt_str) - 2;
   char *buf = malloc (strlen (str) + len + 1);
   sprintf (buf, color_fmt_str, str);
   return buf;
diff --git a/src/chsrc-main.c b/src/chsrc-main.c
index c823d20c..83ec81da 100644
--- a/src/chsrc-main.c
+++ b/src/chsrc-main.c
@@ -372,7 +372,7 @@ cli_print_target_features (Target_t *target, const char *input_target_name)
       default:
         xy_unreached();
       }
-    char *msg = xy_strcat (3, bdblue (" = "),
+    char *msg = xy_strcat (2, bdblue (" = "),
       purple (xy_strcat (5, "默认作用域 | chsrc set -scope=default ", input_target_name, " (= ", default_scope_name ,")")));
     puts (msg);
     br();