优化:在使用BBS命令时,避免出现0.999999这样的数值。

src/Common/eval.ts

@@ -1,5 +1,5 @@
 import { equaln } from "../Geometry/GeUtils";
-import { clamp as CLAMP } from "./Utils";
+import { clamp as CLAMP, FixedNotZero } from "./Utils";
 
 let abs = Math.abs;
 let acos = Math.acos;
@@ -97,6 +97,6 @@ export function ParseExpr(expr: string, params?: {})
     let strs = expr.match(Reg_Expr);
     if (!strs) return expr;
     for (let str of strs)
-        expr = expr.replace(str, safeEval(str.slice(1, -1), params).toString());
+        expr = expr.replace(str, FixedNotZero(safeEval(str.slice(1, -1), params), 2));
     return expr;
 }