diff --git a/src/core/constant/var.js b/src/core/constant/var.js
index f0a4e2db8..f9acb8b30 100644
--- a/src/core/constant/var.js
+++ b/src/core/constant/var.js
@@ -16,7 +16,7 @@ BI._.extend(BI, {
     pixUnit: "px",
     pixRatio: 1,
     // 一定返回最终的单位
-    toPix: function (pix, border) {
+    pixFormat: function (pix, border) {
         if (!BI.isNumber(pix)) {
             return pix;
         }
@@ -29,7 +29,7 @@ BI._.extend(BI, {
         }
         return length;
     },
-    pixFormat: function (pix, border) {
+    toPix: function (pix, border) {
         if (!BI.isNumber(pix)) {
             return pix;
         }