commit f65c54f4883f21d10afbf9f3b108ad508b980665
Author: renzhiyuan <465386466@qq.com>
Date:   Tue Jul 21 17:23:46 2026 +0800

    添加文件: xy-shanghai/go.mod

diff --git a/xy-shanghai/go.mod b/xy-shanghai/go.mod
new file mode 100644
index 0000000..1751c48
--- /dev/null
+++ b/xy-shanghai/go.mod
@@ -0,0 +1,5 @@
+module xy-shanghai
+
+go 1.21
+
+require github.com/tjfoc/gmsm v1.4.1
\ No newline at end of file