摘要: let u: undefined = undefined let n: null = null 类型注解 function greeter (person: string) { return 'Hello, ' + person } let user = [0, 1, 2] console.log( 阅读全文
posted @ 2022-11-27 16:42 啊賢 阅读(23) 评论(0) 推荐(0) 编辑