CodePudding user response:
In the upload code set a global variable, on the interface and a cancel button, click on the button, changes in global variables, then exit subcancel
CodePudding user response:
http://zhidao.baidu.com/question/63298082CodePudding user response:
http://zhidao.baidu.com/question/536248719.htmlCodePudding user response:
http://bbs.csdn.net/topics/80449778CodePudding user response:
http://bbs.csdn.net/topics/90222785