export default {}
// 可选属性 ?
interface IFullName {
firstName: string
lastName: string
age?: number
}
let goddessName: IFullName = {
firstName: "邱",
lastName: "淑贞",
}
// 只读属性 readonly
interface IInfo {
readonly uname: string
readonly uage: number
}
let beauty:IInfo = {
uname: "李庚希",
uage: 18
}
// beauty.uname = "赵丽颖"
// beauty.uage = 28
// readonly VS const
// const aaa = 123;
// aaa = 456;
interface IAAA {
readonly aaa: number
}
interface IAAA {
bbb: number
}
let aaabbb: IAAA = {
aaa: 123,
bbb: 456
}
/*
总结:
如果我们要作为变量使用就使用 const
如果我们要作为属性使用就使用 readonly
*/