!2780 修复:二维刀路深度输入框警告

src/Common/CheckoutVaildValue.ts

@@ -145,6 +145,7 @@ export namespace CheckoutValid
                     return "表达式错误";
                 if (safeEval(v) < 0)
                     return "数值不能小于0";
+                return "";
             case CheckObjectType.ExpireDays:
                 val = safeEval(v);
                 if (v !== "" && (isNaN(val) || val != Math.floor(val) || val <= 0))