2个复选框:一、渠道:线上、线下二、城市:上海、成都、北京.....我选了第一个筛选框的线上以后,想选第二个筛选框的上海、北京,但是选完以后确实是上海、北京的数据,但是第一个选的线上就变成了全部,没办法同时筛选2个复选框的内容,求问怎么办补充:渠道筛选框的联动:where 1 =1 ${if(len(city) == 0,"","and city in ('" +city + "')")}城市筛选框:where 1 =1 ${if(len(channel) == 0,"","and channel in ('" +channel + "')")}字符串也都是','在明细数据里也是写了:where 1 =1 ${if(len(channel) == 0,"","and channel in ('" +channel + "')")}${if(len(city) == 0,"","and city in ('" +city + "')")}不知道为什么不能同时筛选