diff --git a/chsrc.c b/chsrc.c
index 611b845..b6b757e 100644
--- a/chsrc.c
+++ b/chsrc.c
@@ -1753,8 +1753,8 @@ usage[] = {
   "使用: chsrc <command> [target] [mirror]",
   "help                      打印此帮助，或 h, -h, --help",
   "list (或 ls, 或 l)        查看可用镜像源，和可换源软件",
-  "list mirror(s)            查看可用镜像源",
-  "list target(s)            查看可换源软件",
+  "list mirror/target        查看可用镜像源，以及可换源的所有目标",
+  "list os/lang/ware         查看可换源的操作系统/编程语言/软件",
   "list <target>             查看该软件可以使用哪些源",
   "cesu <target>             对该软件所有源测速",
   "get  <target>             查看当前软件的源使用情况",
@@ -1808,7 +1808,6 @@ print_supported_targets_ (const char*** array, size_t size)
   puts("");
 }
 
-
 void
 print_supported_targets ()
 {
@@ -1821,6 +1820,27 @@ print_supported_targets ()
   print_supported_targets_ (wr_softwares, xy_arylen(wr_softwares));
 }
 
+void
+print_supported_pl ()
+{
+  xy_info ("chsrc: 支持对以下编程语言生态换源 (同一行表示这几个命令兼容)");
+  print_supported_targets_ (pl_packagers,   xy_arylen(pl_packagers));
+}
+
+void
+print_supported_os ()
+{
+  xy_info ("chsrc: 支持对以下操作系统换源 (同一行表示这几个命令兼容)");
+  print_supported_targets_ (os_systems,   xy_arylen(os_systems));
+}
+
+void
+print_supported_wr ()
+{
+  xy_info ("chsrc: 支持对以下软件换源 (同一行表示这几个命令兼容)");
+  print_supported_targets_ (wr_softwares,   xy_arylen(wr_softwares));
+}
+
 
 
 /**
@@ -2007,6 +2027,24 @@ main (int argc, char const *argv[])
       if (xy_streql(argv[2],"target"))  {
         print_supported_targets(); return 0;
       }
+      if (xy_streql(argv[2],"os")) {
+        print_supported_os(); return 0;
+      }
+      if (xy_streql(argv[2],"lang")) {
+        print_supported_pl(); return 0;
+      }
+      if (xy_streql(argv[2],"pl")) {
+        print_supported_pl(); return 0;
+      }
+      if (xy_streql(argv[2],"language")) {
+        print_supported_pl(); return 0;
+      }
+      if (xy_streql(argv[2],"software")) {
+        print_supported_wr(); return 0;
+      }
+      if (xy_streql(argv[2],"ware")) {
+        print_supported_wr(); return 0;
+      }
       matched = get_target(argv[2], Target_List_Source, NULL);
       if (!matched) goto not_matched;
     }
diff --git a/chsrc.h b/chsrc.h
index b7488fb..ee2c885 100644
--- a/chsrc.h
+++ b/chsrc.h
@@ -3,7 +3,7 @@
  * License       : GPLv3
  * Authors       : Aoran Zeng <ccmywish@qq.com>
  * Created on    : <2023-08-29>
- * Last modified : <2023-09-15>
+ * Last modified : <2023-09-17>
  *
  * chsrc:
  *
@@ -13,7 +13,7 @@
 #include "xy.h"
 #include "sources.h"
 
-#define Chsrc_Version "v0.1.0-20230915.pre"
+#define Chsrc_Version "v0.1.0-20230917.pre"
 
 
 /**