style(cache): 格式化代码注释中的空格并添加 DISTINCT 选项

- 修复了缓存相关文件中注释开头缺少空格的问题
- 在 db/hotimedb.go 中为 vcond 数组添加了 "DISTINCT" 选项
- 注释掉了 session.go 中的并发控制代码以简化实现

dri/ddsms/ddsms.go

@@ -49,7 +49,7 @@ func (that *dingdongyun) SendTz(umoblie []string, tpt string, data map[string]st
 	return that.send(that.TzUrl, umobleStr, tpt)
 }
 
-//发送短信
+// 发送短信
 func (that *dingdongyun) send(mUrl string, umoblie string, content string) (bool, error) {
 
 	data_send_sms_yzm := url.Values{"apikey": {that.ApiKey}, "mobile": {umoblie}, "content": {content}}
@@ -74,7 +74,7 @@ func (that *dingdongyun) send(mUrl string, umoblie string, content string) (bool
 	return true, nil
 }
 
-//调用url发送短信的连接
+// 调用url发送短信的连接
 func (that *dingdongyun) httpsPostForm(url string, data url.Values) (string, error) {
 	resp, err := http.PostForm(url, data)