static BOOL flag=NO;
dispatch_queue_t myQueue=dispatch_queue_create("identifier", NULL);
dispatch_async(myQueue, ^{
for (int i=0; i<10; i++) {
NSLog(@"%d",i);
}
flag=YES;
});
NSLog(@"before");
while (!flag){
NSLog(@"after");
}
NSLog(@"after2");
return;
时间： 2024-10-14 20:24:53