test stdout

@@ -174,9 +174,9 @@ class PageCahe extends Model {
                 // resolve();
                 let result = conn.exec('ls', (err, stream) => {
                     stream.on('data', function(data) {
-                      console.log('STDOUT: ' + data);
+                      self._broadcast('STDOUT: ' + data);
                     }).stderr.on('data', function(data) {
-                      console.log('STDERR: ' + data);
+                      self._broadcast('STDERR: ' + data);
                     });
                     if (err) {
                         self._broadcast('执行错误：${err}');