SELECT * FROM `mytable` WHERE CHARACTER_LENGTH(xingming)=2SELECT CONCAT(LEFT(xingming,1),' ',RIGHT(xingming,1)) FROM `mytable` WHERE CHARACTER_LENGTH(xingming)=2UPDATE`mytable` SET xingming=CONCAT(LEFT(xingming,1),' ',RIGHT(xingming
const experss = require('express'); const path = require('path'); const cookieparser = require('cookie-parser'); const app = experss(); app.listen(3000, () => { console.log(`web服务器工作在3000端口`); }); //使用第三方cookie-parser中
``` 内容：ECMAScript基础 日期：xx-xx-xx ``` # 一、...运算符【重点】 ## 1.1 扩展运算符(spread) 1、扩展运算符的语法： ... 2、扩展运算符的功能： 展开数据、收集数据 ### 1.1.1函数传参 ```javascript <script> //收集数据 //function d
清空多个指定id的 中的数据，同时赋值为“0” input中必须加上name=xingming id=xingming浏览器兼容、急速模式下才能正常使用 好像加上name=xingming 就正常了！！ <script> function myclear() { for(i=0;i<document.getElementsByName("xingming").length;i++) if(document.getE
class BMI: def __init__(self,xingming,nianling,tizhong,shengao): self.xingming = xingming self.nianling = nianling self.tizhong = tizhong self.shengao = shengao self.bmi = tizhong/(shengao*shengao) t =
