From d977f04f0fb2f7110704de3d4fe476315aa012e4 Mon Sep 17 00:00:00 2001
From: msincenselee <incenselee@hotmail.com>
Date: Sun, 19 Jan 2020 17:02:37 +0800
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---
 vnpy/trader/converter.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vnpy/trader/converter.py b/vnpy/trader/converter.py
index d2fe23d4..c0c83002 100644
--- a/vnpy/trader/converter.py
+++ b/vnpy/trader/converter.py
@@ -302,3 +302,5 @@ class PositionHolding:
 
             return req_list
 
+    def to_str(self):
+        return f'Long:{self.long_pos},yd:{self.long_yd},td:{self.long_td}; Short:{self.short_pos},yd:{self.short_yd},td:{self.short_yd}'