diff --git a/common/nav-calc-utils.js b/common/nav-calc-utils.js
index 67b7afa..f97af61 100644
--- a/common/nav-calc-utils.js
+++ b/common/nav-calc-utils.js
@@ -36,6 +36,7 @@ function navParams() {
 		navStatusHeight: '0px',
 		// 状态栏高度
 		statusBarHeight: 0,
+		unit: 'px'
 	}
 
 	// 同步获取信息