Merge pull request #203840 in DEC/fineui from master to feature/x

* commit 'c02048b52ec555772a1cab32bbf5591f7f4373cc':
  KERNEL-13158: 优化useContext

src/core/constant/var.js

@@ -19,8 +19,8 @@ BI._.extend(BI, {
         if (!BI.isNumber(pix)) {
             return pix;
         }
-        if (BI.pixUnit === "px" && BI.pixRatio === 1) {
+        if (BI.pixUnit === "px") {
-            return (pix - (border || 0)) / BI.pixRatio + BI.pixUnit;
+            return (pix - (border || 0)) / BI.pixRatio;
         }
         var length = pix / BI.pixRatio + BI.pixUnit;
         if (border > 0) {