用 oc 发 http get 无任何反应，求解

[wohenyingyu01]

方法：

main 函数里：


执行后，断点不进去，结果是
the result from ipip is (null)

[wohenyingyu01]

这图＝ ＝
我把代码复制一遍好了


+(NSString *)requestHTTPGetFromURL:(NSString *)url{
NSString* __block result;
NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]];

NSURL * target = [NSURL URLWithString:url];

NSURLSessionDataTask * dataTask = [defaultSession dataTaskWithURL:target
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if(error == nil)
{
result = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSLog(@"Data = %@",result);
}else{
NSLog(@"The error is :%ld",[error code]);
}

}];

[dataTask resume];

return result;
}

[xi_lin]

实验了一下没有问题
Data = ["GOOGLE","GOOGLE","","","google.com"]