循环变量的多级属性无法输出
![image](https://cloud.githubusercontent.com/assets/3611770/5659320/553ce75e-974b-11e4-9f8d-b3f0dff969b8.png)

{{each strategies as strategy i}}
{{each strategies.content.prizes as prize i}}
{{/each}}
{{/each}}

strategies.content.prizes 无法获得内容
strategies.content可以获得数据

{"condition":{"id":1,"content":"{ip:[{limitType:0,limitTypeContet:\"8小时中奖次数限制\",limitCount:5}],cardno:[{limitType:0,limitTypeContent:\"每天中奖次数限制\",limitCount:1}]}","activityId":1},"activity":{"name":"圣诞节","id":1,"status":1,"startdate":"2014-12-10","enddate":"2014-12-25"},"prizes":[{"name":"iphone6","id":1,"activityId":1,"paymentCode":"12314","degree":0,"degreeContent":"特等奖","count":10}],"strategies":[{"id":1,"content":"{prizes:[degree:0,degreeContent:\"特等奖\", probability:0.1,count:1]}","activityId":1,"startdate":"2014-12-10","enddate":"2014-12-26","period":0,"periodContent":"00:00:00~24:00:00"}]}
