func (this *Client) Zincr(setName string, key string, num int64) (int64, error) {
if len(key) == 0 {
return 0, nil
}
resp, err := this.Do("zincr", setName, key, this.encoding(num, false))
if err != nil {
return 0, goerr.NewError(err, "Zincr %s %s %v", setName, key, num)
}
if len(resp) > 1 && resp[0] == "ok" {
return to.Int64(resp[1]), nil
}
return 0, makeError(resp, setName, key)
}
//返回 int64 的值
func (this Value) Int64() int64 {
return to.Int64(this)
}