We should not dump REGION/BOUND/REGION_NODES to v2 inp file

api/inp_out.py

@@ -53,7 +53,13 @@ def dump_inp(project: str, inp: str, version: str = '3'):
 
     file = open(path, mode='w',encoding="UTF-8")
 
-    for name in section_name:
+    # REGION, BOUND, REGION_NODES 在 epanet v2 中没有，是我们自己定制的
+    # v2 需要去掉我们自己定制的 section
+    sections = section_names_for_epanetv2
+    if version == '3':
+        sections = section_name
+
+    for name in sections:
         if name == TITLE:
             file.write(f'[{name}]\n')
         else: