DeleteNews(bid){ uni.showModal({ title: '提示', content: '是否移除好友消息？', success: function(res) { if (res.confirm) { var conversationID = bid; //删除会话ID var conversationType = 0; //单聊 var config = { isAlsoDeleteServerMessage: true }; wx.$store.deleteAllMessage(conversationID, conversationType, config); wx.$store.deleteConversation(conversationID, conversationType, config); setTimeout(() => { wx.$store.queryConversationList(); }, 500); } } }); },修改代码,让他可以使用

你可以将代码修改为以下形式：

function DeleteNews(bid) {
  uni.showModal({
    title: '提示',
    content: '是否移除好友消息？',
    success: function(res) {
      if (res.confirm) {
        var conversationID = bid; //删除会话ID
        var conversationType = 0; //单聊
        var config = {
          isAlsoDeleteServerMessage: true
        };
        uni.$emit('deleteAllMessage', conversationID, conversationType, config);
        uni.$emit('deleteConversation', conversationID, conversationType, config);
        setTimeout(() => {
          uni.$emit('queryConversationList');
        }, 500);
      }
    }
  });
}

这里使用了 `uni.$emit` 方法来触发对应的事件，需要在其他地方监听这些事件并进行相应的处理。比如：

uni.$on('deleteAllMessage', function(conversationID, conversationType, config) {
  wx.$store.deleteAllMessage(conversationID, conversationType, config);
});

uni.$on('deleteConversation', function(conversationID, conversationType, config) {
  wx.$store.deleteConversation(conversationID, conversationType, config);
});

uni.$on('queryConversationList', function() {
  wx.$store.queryConversationList();
});

这样就可以让函数可以使用了。