console.log(encodeURI("%")) //%25
console.log(encodeURIComponent("%")) // %25
console.log(decodeURIComponent("https://www.mirai.site?id%3d1")) // https://www.mirai.site?id=1
console.log(decodeURI("id%3d1")) // id%3d1
原文：https://www.cnblogs.com/jjmirai/p/9571254.html