diff --git a/src/Common/eval.ts b/src/Common/eval.ts
index 33fc49a0b..50814acc8 100644
--- a/src/Common/eval.ts
+++ b/src/Common/eval.ts
@@ -61,7 +61,7 @@ export function eval2(expr: string, params?: {}): number
     if (typeof result === "function")
         return result();
 
-    return result;
+    return Number(result);//防止bigint乱入
 }
 
 export function safeEval(expr: string, params?: {}): number