update readme

nange · Nov 16, 2017 · 7946adf · 7946adf
1 parent 911064e
commit 7946adf
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -39,6 +39,9 @@ conn.Close()
 conn.(*PoolConn).MarkUnusable()
 conn.Close()
 
+// 调用MarkUnusable()后，会返回true
+conn.(*PoolConn).IsUnusable()
+
 // 释放当前连接池中所有连接
 pool.Close()