假设数据为: let str = "zheng-shize-zsz"; 获取第一个横杠的位置: str.indexOf("-") 1. 那获取第二个横杠怎么写呢? let str = "zheng-shize-zsz"; let one; // 第二个横杠前内容 let two; // 第二个横杠后内容 let first = str.indexOf("-") + 1; // 从第一个横杠算起(+1表示不包括该横杠) let
var two="https://192.255.255.255:3215/2019/2/26/16/13/b2e8929483c66cefddbe1e49a007e3f8-47358FC376BA7D289BD3E2E4631ACD8A.BMP"; var myTwo=two.replace(/\\/g,"/"); console.log(myTwo);
update Food set FoodTitle=cast(SUBSTRING(FoodTitle,0,PATINDEX('%的%',FoodTitle)) as nvarchar),FoodCode=cast(SUBSTRING(FoodCode,0,PATINDEX('%d%',FoodCode)) as nvarchar)where FoodTitle like '%的%'
var getCurrentWeek = function (day) { var days = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"]; //定义数组 var week = []; //获取当前星期X(0-6,0代表星期天) var index = new Date(day).getDay(); //循环 for (va