// // NSArray+ex.m // LNManager // // Created by EchoShacolee on 2017/6/5. // Copyright © 2017年 lee. All rights reserved. // #import "NSArray+ex.h" @implementation NSArray (ex) - (id)h_safeObjectAtIndex:(NSUInteger)index{ if(self.count ==0) { // NSLog(@"--- mutableArray have no objects ---"); return (nil); } if(index >MAX(self.count -1,0)) { // NSLog(@"--- index:%li out of mutableArray range ---", (long)index); return (nil); } return ([self objectAtIndex:index]); } @end