avoid nan

handle.py

@@ -55,7 +55,7 @@ def resolve(file_name: str, supplier_id: int):
     for i in range(len(df.index.values)):
         goods_name = str(df.loc[i, "原厂型号"])
         brand_name = str(df.loc[i, "品牌"])
-        if goods_name.strip() == "" or brand_name.strip() == "":
+        if goods_name.strip() == "" or brand_name.strip() == "" or goods_name.strip() == "nan" or brand_name.strip() == "nan":
             continue
         stock = str(df.loc[i, "库存"])
         moq = str(df.loc[i, "起订量"])