Ambiguous reference to member 'dataTask(with:completionHandle:)'错误

在研究IOS的网络请求过程中,因为NSURLConnection已经过时,需要引用到URLSession

var url:NSURL=NSURL(string: "http://3g.163.com")!

var request:NSURLRequest=NSURLRequest(url: url as URL)

//创建会话对象

let session=URLSession.shared

let date = Date()

print("创建任务, 时间:\(date.timeIntervalSince1970)")

//初始化请求

let dataTask = session.dataTask(with: request, completionHandler: { (data,resp,err) in

})

编译时候一直报错,Ambiguous reference to member 'dataTask(with:completionHandle:)'错误。

开始我一直怀疑是completionHandle错误,不停的去查资料,后来突然发现,原来错误在with :request

通过定义去查看URLSession

open func dataTask(with request: URLRequest, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Swift.Void) -> URLSessionDataTask

/////////////////////////////

with request:URLRequest

我上面用NSURLRequest,我真的是醉了,这个错误错的离谱啊。

写在这里估计大家都明白错误原因了。花了一天的时间,希望此文对自己有所提高

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