diff --git a/package.json b/package.json
index 8fe2fd9..2dbd591 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "anot",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Anot - 迷你mvvm框架",
   "main": "dist/anot.js",
   "files": [
diff --git a/src/17-:class.js b/src/17-:class.js
index 916dd47..2f16ba3 100644
--- a/src/17-:class.js
+++ b/src/17-:class.js
@@ -1,6 +1,7 @@
 //类名定义， :class="xx:yy"  :class="{xx: yy}" :class="xx" :class="{{xx}}"
 Anot.directive('class', {
   init: function(binding) {
+    binding.expr = binding.expr.replace(/\n/g, '  ').replace(/\s{2,}/g, '  ')
     var expr = []
     if (!/^\{.*\}$/.test(binding.expr)) {
       expr = binding.expr.split(':')