add something

当前时间的获取.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <time.h>
+int main ()
+{
+    time_t t;
+    struct tm * lt;
+    time (&t);
+    lt = localtime (&t);
+    printf ( "现在是：%d/%d/%d %d:%d:%d\n",lt->tm_year+1900, lt->tm_mon+2, lt->tm_mday, lt->tm_hour, lt->tm_min, lt->tm_sec);
+    if(lt->tm_mon+1>0&&lt->tm_mon+1<5)
+    printf("\n夜深了，该睡了");
+    return 0;
+}