function getInfo(name:string):string;
function getInfo(age:number):string;
function getInfo(str:any):any{
    if (typeof str=='string') {
        return '我叫---'+str
        
    }
    if (typeof str=='number') {
        return '我的年龄---'+str
    }
}

console.log(getInfo('张三'))
console.log(getInfo(18))