Vue 银行卡号 每4位补一个空格 vue 隔四个字符加一个空格效果图输入方式进行格式化代码: <el-form-item label="测试" prop="test"> <el-input v-model="queryParams.test" placeholder="测试" clearable :maxlength="23" size="small" /> </el-form-item>watch监听 watch: { ['queryParams.test'](val) { this.$nextTick(() => { this.queryParams.test = val.replace(/\D/g,'').replace(/....(?!$)/g,'$& '); console.log('数字是多少:', this.queryParams.test,val) }); } },展示直接格式化{{ item.name.replace(/(\d{4})(?=\d)/g, '$1 ') }}

mysql怎么获取不重复的数据？ mysql怎么获取不重复的数据？mysql获取不重复的数据的方法：在查询语句中添加distinct关键字来过滤重复的记录select distinct 字段名 from 数据表;使用方法对单个字段进行去重sql：select distinct age from user;对多个字段进行去重sql:select distinct name,age from user;对多个字段进行去重并求count的sql:select count(distinct name,age) as total from user;也可以对select * 进行去重select distinct * from user;

使用SQL语句来判断数据库中时间，是否为当日时间 使用SQL语句来判断数据库中时间，是否为当日时间可直接使用select count(*) from history_visitor where date_format(visit_time,'%Y-%m-%d')= date_format(now(),'%Y-%m-%d') 直接在sql中实现了将create_time和当前时间按年月日格式比较，若处在一条相同的·，则说明该用户今日已签到。mysql判断时间是否是当天，昨天今天 select * from 表名 where to_days(时间字段名) = to_days(now()); 昨天 SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1 7天 SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名) 近30天 SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名) 本月 SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' ) 上一月 SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1 #查询本季度数据 select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now()); #查询上季度数据 select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER)); #查询本年数据 select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW()); #查询上年数据 select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year)); 查询当前这周的数据 SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now()); 查询上周的数据 SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1; 查询当前月份的数据 select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m') 查询距离当前现在6个月的数据 select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now(); 查询上个月的数据 select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m') select * from ` user ` where DATE_FORMAT(pudate, ' %Y%m ' ) = DATE_FORMAT(CURDATE(), ' %Y%m ' ) ; select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now()) select * from user where MONTH (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = MONTH (now()) select * from [ user ] where YEAR (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = YEAR (now()) and MONTH (FROM_UNIXTIME(pudate, ' %y-%m-%d ' )) = MONTH (now()) select * from [ user ] where pudate between 上月最后一天 and 下月第一天 where date(regdate) = curdate(); select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now()) SELECT date( c_instime ) ,curdate( ) FROM `t_score` WHERE 1 LIMIT 0 , 30

php远程请求CURL案例（爬虫、保存登录状态） php远程请求CURL案例

[go语言]抖音获取用户详细信息 下面直接贴代码,附带源码和成品,请自行下载package main import ( "bufio" "encoding/json" "fmt" "io/ioutil" "net/http" "os" "strings" "time" ) type structureData struct { StatusCode int `json:"status_code"` UserInfo struct { AwemeCount int `json:"aweme_count"` FollowingCount int `json:"following_count"` SecUID string `json:"sec_uid"` EnterpriseVerifyReason string `json:"enterprise_verify_reason"` IsMixUser bool `json:"is_mix_user"` UID string `json:"uid"` Nickname string `json:"nickname"` AvatarLarger struct { URI string `json:"uri"` URLList []string `json:"url_list"` } `json:"avatar_larger"` OriginalMusician struct { MusicCount int `json:"music_count"` MusicUsedCount int `json:"music_used_count"` DiggCount int `json:"digg_count"` } `json:"original_musician"` Signature string `json:"signature"` FavoritingCount int `json:"favoriting_count"` UniqueID string `json:"unique_id"` MixInfo interface{} `json:"mix_info"` AvatarMedium struct { URI string `json:"uri"` URLList []string `json:"url_list"` } `json:"avatar_medium"` VerificationType int `json:"verification_type"` TypeLabel interface{} `json:"type_label"` TotalFavorited string `json:"total_favorited"` MplatformFollowersCount int `json:"mplatform_followers_count"` IsGovMediaVip bool `json:"is_gov_media_vip"` ShowFavoriteList bool `json:"show_favorite_list"` CardEntries []interface{} `json:"card_entries"` ShortID string `json:"short_id"` FollowStatus int `json:"follow_status"` FollowerCount int `json:"follower_count"` Secret int `json:"secret"` Geofencing interface{} `json:"geofencing"` PolicyVersion interface{} `json:"policy_version"` AvatarThumb struct { URI string `json:"uri"` URLList []string `json:"url_list"` } `json:"avatar_thumb"` CustomVerify string `json:"custom_verify"` PlatformSyncInfo []interface{} `json:"platform_sync_info"` FollowersDetail interface{} `json:"followers_detail"` MixCount int `json:"mix_count"` } `json:"user_info"` Extra struct { Now int64 `json:"now"` Logid string `json:"logid"` } `json:"extra"` } func main() { for { fmt.Println(` 韩昊杰go语言软件 查询抖音信息工具 输入quit即可退出 `) var scan string fmt.Print("请输入你要查询用户的ID:") reader := bufio.NewReader(os.Stdin) // 标准输入输出 scan, _ = reader.ReadString('\n') // 回车结束 scan = strings.TrimSpace(scan) // 去除最后一个空格 if scan == "quit" { os.Exit(1) } fmt.Println("------------------------------下面是结果------------------------------") fmt.Println("") returnData := request(scan) fmt.Printf("账号昵称:%v\n", returnData.UserInfo.Nickname) fmt.Printf("短位id:%v\n", returnData.UserInfo.UID) fmt.Printf("获赞数量:%v\n", returnData.UserInfo.TotalFavorited) fmt.Printf("粉丝:%v\n", returnData.UserInfo.FollowerCount) fmt.Printf("关注:%v\n", returnData.UserInfo.FollowingCount) fmt.Printf("签名:%v\n", returnData.UserInfo.Signature) fmt.Printf("头像链接:%v\n", returnData.UserInfo.AvatarLarger.URLList[0]) fmt.Println("") fmt.Println("------------------------------上面面是结果------------------------------") time.Sleep(time.Second * 4) fmt.Println("再次输入内容即可再次查询") } } func request(data string) structureData { resp, err := http.Get("https://www.iesdouyin.com/web/api/v2/user/info/?unique_id=" + data) if err != nil { fmt.Print("http faild err data:", err) } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { fmt.Print("ioutil faile") } var returnData structureData json.Unmarshal([]byte(body), &returnData) return returnData }