update

backend/controller/api_manager.py

@@ -59,13 +59,21 @@ class ApiManager(object):
 
     def get_escape_text(self, data):
         fname = "./a.c"
-        with open("./a.c", "w+") as f:
+        target = os.sep.join(["out", fname])
+
+        if os.path.exists(fname):
+            os.remove(fname)
+
+        if os.path.exists(target):
+            os.remove(target)
+
+        with open(fname, "w+") as f:
             f.write(data['string'])
 
         result = os.system("./opqcp {i} ./out".format(i=fname))
         print(result)
 
-        with open("./out/a.c") as f:
+        with open(target) as f:
             result = f.read()
 
         return result