目前所知有七种方法
//第一种
[arr enumerateObjectsUsingBlock: ^(id obj, NSUInteger idx, BOOLBOOL *stop){
NSLog(@"%ld,%@",idx,[arr objectAtIndex:idx]);
}];
//第二种
dispatch_apply([arr count], dispatch_get_global_queue(0, 0), ^(size_t index){//并行
NSLog(@"%ld,%@",index,[arr objectAtIndex:index]);
});
//第三种
dispatch_apply([arr count], dispatch_get_main_queue(), ^(size_t index){//串行,容易引起主线程堵塞,可以另外开辟线程
NSLog(@"%ld,%@",index,[arr objectAtIndex:index]);
});
//第四种
for (NSString*str in arr) {
NSLog(@"%@",str);
}
//第五种,do-while
int i = 0;
do {
NSLog(@"%@",[arr objectAtIndex:i]);
i++;
} while (i<[arr count]);
//第六种,
while-do int j = 0; while (j<[arr count]) {
NSLog(@"%@",[arr objectAtIndex:j]);
j++; }
//第七种,普通for循环
for (int m = 0; m<[arr count]; m++){
NSLog(@"%@",[arr objectAtIndex:m]);
}
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