OC中使用:
NSArray * lists = [NSArray array]; [lists enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { }];
NSArray * lists = [NSArray array];
[lists enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
}];
Swift中使用:
for (index,object) in (lists?.enumerate())! { }
for (index,object) in (lists?.enumerate())! {
}