//第一种
[arr enumerateObjectsUsingBlock: ^(
id obj, NSUInteger idx, BOOL *
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]);
}
//第八中
NSEnumerator *enumerator =
[langArray objectEnumerator];
id object;
while ((
object = [enumerator nextObject]) !=
nil) {
NSLog(@"langArray=%@",
object);
}
转载于:https://www.cnblogs.com/KingQiangzi/p/4252796.html
