<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> </body> <script> // 声明常量 const SCHOOL='交大' // 1一定要赋初值 // const A; // 2一般常量使用大写(潜规则) // const a=100; // 3常量的值不能修改 // SCHOOL='北大' // 4块级作用域 // { // const PLAYER='UZI' // } // console.log(PLAYER) // 5对于数组对象的元素修改,不算对常量的修改,不会报错 // const TEAM=['UZI','MING']; // 不报错 // TEAM.push('Meiko'); // 报错 // TEAM=100; // 解构赋值 // 1数组结构 const F4=['小沈阳','刘能','宋小宝','赵四'] let [xiao,liu,zhao,song]=F4 console.log(xiao) console.log(liu) console.log(zhao) console.log(song) // 2对象的结构 const ZBS={ name:'赵本山', age:'不详', xiaopin:function(){ console.log("我可以演小品"); } } let {name,age,xiaopin}=ZBS; console.log(name) console.log(age) console.log(xiaopin) xiaopin() </script> </html>
标签:const,log,关键字,xiaopin,报错,console,常量 From: https://www.cnblogs.com/wmqxlt/p/18630368