#import "MSCrashProtector.h"

        
    //NSArray
    NSArray* arr = @[@"1"];
    [arr objectAtIndexSafe:10];
    id obj = [arr objectAtIndex:0 kindOfClass:[NSString class]];
    NSLog(@"%@",obj);
    
    //NSMutableArray
    NSMutableArray* marr = [NSMutableArray array];
    [marr addObjectSafe:nil];
    [marr removeObjectAtIndexInBoundary:100];
    [marr insertObject:@111 atIndexInBoundary:100];

    
    //NSDictionary
    NSDictionary* dic = [NSDictionary dictionary];
    [dic objectForKey:nil defaultValue:@"test"];

    //NSMutableDictionary
    NSMutableDictionary* mdic = [NSMutableDictionary dictionary];
    [mdic setObjectSafe:nil forKey:nil];