diff --git a/others/src/systime.cpp b/others/src/systime.cpp
new file mode 100644
index 0000000..87d3e2e
--- /dev/null
+++ b/others/src/systime.cpp
@@ -0,0 +1,26 @@
+//
+// Created by xinyang on 19-7-31.
+//
+#include <systime.h>
+
+#if defined(Linux)
+
+void getsystime(systime &t){
+    timeval tv;
+    gettimeofday(&tv, nullptr);
+    t.second = tv.tv_sec;
+    t.millisecond = tv.tv_usec/1000;
+}
+
+#elif defined(Windows)
+
+void getsystime(systime &t){
+    SYSTEMTIME tv;
+    GetLocalTime(&tv);
+    t.second = tv.wSecond;
+    t.millisecond = tv.wMilliseconds;
+}
+
+#else
+    #error "nonsupport platform."
+#endif