Merge branch 'feature/ticker' into 'master'

common/business/ExchangeBusiness.php

@@ -41,7 +41,8 @@ class ExchangeBusiness
         12 => 'Boc',
         13 => 'Ex',
         14 => 'Zt',
-        15 => 'Tsc'
+        15 => 'Tsc',
+        16 => 'Binance'
     ];
 
     /**
@@ -279,8 +280,11 @@ class ExchangeBusiness
             /**
              * @var $exchange \common\service\exchange\ExchangeInterface
              */
+            go(function () use ($exchange) {
+                \Co::sleep(0.5);
                 $exchange = ExchangeFactory::createExchange($exchange);
                 $exchange->setQuotation();
+            });
         }
     }