输出: 分析:定时任务1执行完,输出,会抛出运行时异常。此时timer已经是cancelled状态。再执行定时任务...
“This lecense CNEKJPQZEX” has been cancelled”的问题, 解决办法: W...
错误1. 使用 Timer timer = new Timer();timer运行多个timertask时,如果一...
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1.{ NSTimer *timer; }- (void)viewDidLoad { timer = [NSTim...
一、先来几个问题 1.在viewDidLoad中添加3个循环的timer,这3个timer都会访问并且改变一个可变...
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本文标题:1. 问题:Timer already cancelled
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