//停顿0.3s 查看状态
dispatch_time_t timer = dispatch_time(DISPATCH_TIME_NOW, 0.3 * NSEC_PER_SEC);
dispatch_after(timer, dispatch_get_main_queue(), ^{
[self checkSellerShop];
});
停顿几秒
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转载自blog.csdn.net/qq910441958/article/details/78549132
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