GO int64转int32

 strconv.ParseInt转换后 都是int64 ,设定 strconv.ParseInt(uid, 10, 32)后，还是int64 所以转换为int32

if userId, err = strconv.ParseInt(uid, 10, 64); err != nil {
userId = 0
}
var roomIdTemp int64
if roomIdTemp, err = strconv.ParseInt(rid, 10, 64); err != nil {
roomId = 1
} else {
roomId = int32(roomIdTemp)
}
fmt.Printf("类型输出userId：%T->%v\n", userId, userId)
fmt.Printf("类型输出roomId：%T->%v\n", roomId, roomId)