访问图：(https://img-ask.csdn.net/upload/201704/01/1491023690_609809.png)调试日志：(https://img-ask.csdn.net/upload/201704/01/1491024020_724751.png)调试日志：(https://img-ask.csdn.net/upload/201704/01/1491023799_912596.png)调试日志：(https://img-ask.csdn.net/upload/201704/01/1491023743_604173.png)
