/***************************数组遍历******************************/
NSArray *array = @[@"111", @"222", @"333", @"444"];
// 1.for 循环
for (int i=0; i
// 2.for in 循环
for (NSString *str in array) {
NSLog(@"%@", str);
}
// 3.迭代遍历
[array enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if (idx == 1) {
*stop = YES;
}
NSLog(@"%@", obj);
}];
/***************************数组中方法******************************/
Person *p1 = [[Person alloc] init];
Person *p2 = [[Person alloc] init];
Person *p3 = [[Person alloc] init];
Person *p4 = [[Person alloc] init];
NSArray *array = @[p1, p2, p3, p4];
// 方法一
[array enumerateObjectsUsingBlock:^(Person* obj, NSUInteger idx, BOOL * _Nonnull stop) {
[obj say];
}];
// 方法二
// [array makeObjectsPerformSelector:@selector(say)];
