feat: CMA P1+P2 Round1 — 成本法对比+杜邦分析+本量利

2026-07-16 16:39:24 +08:00
parent 46fa811d52
commit 4b25f46124
8728 changed files with 1772671 additions and 151 deletions
@@ -0,0 +1,25 @@
+# Copyright (c) 2010-2024 openpyxl
+
+from datetime import datetime
+from math import isnan, isinf
+import sys
+
+VER = sys.version_info
+
+from .numbers import NUMERIC_TYPES
+
+
+def safe_string(value):
+    """Safely and consistently format numeric values"""
+    if isinstance(value, NUMERIC_TYPES):
+        if isnan(value) or isinf(value):
+            value = ""
+        else:
+            value = "%.16g" % value
+    elif value is None:
+        value = "none"
+    elif isinstance(value, datetime):
+        value = value.isoformat()
+    elif not isinstance(value, str):
+        value = str(value)
+    return value