-(void)btnCLick{
    NSArray *endVC = @[@"VC",@"vc",@"viewController@",@"ViewController@", @"VIEWCONTROLLER"];
     
    NSArray *endData = @[@"Data", @"data", @"Model",@"MODEL",@"MO"];
     
    NSArray *endView = @[@"VIEW", @"View", @"view"];
     
    NSArray *endEngine = @[@"Engine",@"engine",@"Manager",@"MA",@"manager",@"Center",@"center"];
     
    NSArray *endCell = @[@"Cell",@"cell",@"CELL"];
     
    NSArray *endDelegate = @[@"Delegate",@"delegate",@"del",@"gate",@"Protocol",@"PROTOCOL",@"procotol"];
     
    NSArray *endTool = @[@"Tool", @"tool", @"Util",@"util",@"helper",@"Helper",@"Browser",@"browser",@"Photo",@"photo",@"LIB",@"lib", @"Image",@"image",@"Button"];
     
     
     
    NSArray *ranDomName1 = @[@"ZYH",@"ZYH",@"ZYH",@"ZYH",@"ZYH",@"ZYH",@"SYSTEM",@"COA",@"TOP",@"LEFT",@"MON",@"CON",@"ZZZ",@"KKK",@"OPP",@"AAA",@"BBB",@"LOM",@"CIRCLE",@"PLUS",@"MEE",@"NES",@"MY",@"YMD",@"ALIBABA"];
     
    NSArray *ranDomName2 = @[@"The",@"Fog",@"TR",@"Haode",@"Xitong",@"Lunbotu",@"Shitu",@"Picture",@"Photo",@"Xieyi",@"Text",@"Rich",@"Line",@"Sys",@"Turn",@"Rever",@"Tiaozhuan",@"Control",@"Noname",@"Name",@"Waker",@"Date",@"Weak",@"XML",@"Hob",@"File",@"Function",@"Fanfa",@"Hob",@"COO",@"Program",@"Net",@"Device",@"SheBei",@"Didian",@"People",@"Thing",@"Shijian",@"Shang",@"Shangbao",@"Other",@"Yanse",@"Color",@"Object",@"Animate",@"Dongzuo",@"Word",@"Act",@"Different",@"Plus",@"Sub",@"Age",@"Newer",@"Login",@"Register",@"Huanxiao",@"Length",@"Count",@"Jihuoma",@"Fly",@"Loop",@"Star",@"Get",@"Set",@"Get",@"Set",@"Get",@"Set",@"Get",@"Set",@"Shenhe",@"Read",@"Write",@"Laker",@"Shanghai",@"Some",@"Get",@"Set",@"In",@"This",@"That",@"String",@"Number",@"AAA",@"Main",@"Work",@"Enable",@"Disable",@"Check",@"Ment"];
     
    NSArray *ranDomName3 = @[@"Welcome",@"In" ,@"Order",@"To",@"Get",@"First",@"1",@"2",@"3",@"4",@"5",@"6",@"Request",@"Some",@"Basic",@"Information",@"One",@"Comes",@"Three" ,@"Pieces",@"The",@"Suite",@"Head",@"LLV",@"MMO",@"RPG",@"Game",@"Random",@"Test",@"Length",@"FPS",@"Shumu",@"Tree",@"Heap",@"Value",@"Number",@"Ana",@"Bit",@"Use",@"For",@"Date",@"Shangbao",@"Other",@"Yanse",@"Color",@"Object",@"Button",@"View",@"Image",@"View",@"Load",@"Creat"];
     
    NSArray *ranDomName4 = @[@"Welcome",@"In" ,@"Order",@"To",@"Get",@"First",@"1",@"2",@"3",@"4",@"5",@"6",@"Object",@"Figure",@"Cele",@"Solider",@"Holiday",@"Calcute",@"Mean",@"Wee",@"Probably",@"Gate",@"World",@"Car",@"Rp",@"Age",@"Giving",@"Doing",@"Play",@"Add",@"Vce",@"Change",@"JSON",@"Standar",@"Adavance",@"Country",@"Check",@"SSS",@"Hos",@"Vic",@"Ter",@"Style",@"UI",@"UI",@"Style",@"CSS",@"Script",@"Test",@"Text",@"Tion",@"Animate",@"Button",@"View",@"Image",@"Image",@"Section",@"View",@"Section",@"Load",@"Mon"];

    NSArray *str = @[@"static",@"super",@"auto",@"struct" ,@"self",@"else",@"while",@"switch",@"case",@"break",@"default",@"continue",@"return"];

    NSMutableArray *muarr = [NSMutableArray array];
    [muarr addObjectsFromArray:endVC];
    [muarr addObjectsFromArray:endData];
    [muarr addObjectsFromArray:endView];
    [muarr addObjectsFromArray:endEngine];
    [muarr addObjectsFromArray:endCell];
    [muarr addObjectsFromArray:endDelegate];
    [muarr addObjectsFromArray:endTool];
    [muarr addObjectsFromArray:ranDomName1];
    [muarr addObjectsFromArray:ranDomName2];
    [muarr addObjectsFromArray:ranDomName3];
    [muarr addObjectsFromArray:ranDomName4];
    [muarr addObjectsFromArray:str];


    NSArray *arr = @[@"a",@"b",@"c",@"d",@"e",@"f",@"g",@"h",@"i",@"j",@"k",@"l",@"m",@"n",@"o",@"p",@"q",@"r",@"s",@"t",@"u",@"v",@"w",@"x",@"y",@"z"];
    NSMutableArray *finalArr = [NSMutableArray array];
    for (int i = 0 ; i < 200; i++) {
        NSString *str = @"";
        for (int j = 0; j < 10; j ++) {
            int r = arc4random() % [arr count];
            NSString *litlestr = [arr objectAtIndex:r];
            str  = [NSString stringWithFormat:@"%@%@",str,litlestr];
        }
        __block BOOL have = NO;
        [muarr enumerateObjectsUsingBlock:^(NSString  *obj, NSUInteger idx, BOOL * _Nonnull stop) {
            if ([str containsString:obj]) {
                have = YES;
                *stop = YES;
            }
        }];
        if (have == NO) {
            [finalArr enumerateObjectsUsingBlock:^(NSString  *obj, NSUInteger idx, BOOL * _Nonnull stop) {
                if ([str containsString:obj]) {
                    have = YES;
                    *stop = YES;
                }
            }];
        }
        if (have == NO) {
            [finalArr addObject:str];
        }
    }
    NSString *finalString = [finalArr componentsJoinedByString:@","];
    DLog(@"finalString -- %@",finalString);
}