用了一个类ZYAppDelegate.h:#import <UIKit/UIKit.h>@interface ZYAppDelegate : UIResponder <UIApplicationDelegate>{int a;UITextField * inputk;UILabel *show;UILabel *face;int n;UILabel *count;}@property (strong, nonatomic) UIWindow *window;- (void)compare;@end算法的核心当然是随机数,在屏幕的文本框获取字符串来转换成浮点型或整形的用来计算,反过来转换输出在屏幕上,
ZYAppDelegate.m:
#import "ZYAppDelegate.h"@implementation ZYAppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];// Override point for customization after application launch.self.window.backgroundColor = [UIColor whiteColor];[self.window makeKeyAndVisible];a = arc4random()%100;UIImageView * imageView = [[UIImageView alloc] initWithFrame:CGRectMake (0,0,320,480)];UIImage *image = [UIImage imageNamed:@"02.jpg"];imageView.image = image;[self.window addSubview:imageView];UILabel * title = [[UILabel alloc] initWithFrame:CGRectMake(115, 40, 100, 30)];title.text = @"猜大小,小游戏";title.textAlignment = NSTextAlignmentCenter;title.font = [UIFont systemFontOfSize:15];[self.window addSubview:title];UILabel *input = [[UILabel alloc] initWithFrame:CGRectMake(30, 90, 70, 30)];input.text = @"请输入:";input.textAlignment = NSTextAlignmentLeft;input.font = [UIFont systemFontOfSize:15];[self.window addSubview:input];inputk = [[UITextField alloc] initWithFrame:CGRectMake(120, 90, 120, 30)];inputk.placeholder = @"在这里写数";inputk.borderStyle = UITextBorderStyleRoundedRect;inputk.backgroundColor = [UIColor grayColor];inputk.keyboardType = UIKeyboardTypeNumberPad;inputk.clearButtonMode = UITextFieldViewModeWhileEditing;[self.window addSubview:inputk];show = [[UILabel alloc] initWithFrame:CGRectMake(65, 150, 200, 170)];show.font = [UIFont systemFontOfSize:50];show.textAlignment = NSTextAlignmentCenter;// show.text = @"猜大了";[self.window addSubview:show];UIButton *reset = [UIButton buttonWithType:UIButtonTypeCustom];reset.frame = CGRectMake(170, 310, 50, 25);[reset setTitle:@"重置" forState:UIControlStateNormal];[reset setBackgroundColor:[UIColor grayColor]];reset.clipsToBounds = YES;reset.layer.cornerRadius = 6;[reset addTarget:self action:@selector(newOne) forControlEvents:UIControlEventTouchUpInside];[self.window addSubview:reset];UIButton *guess = [UIButton buttonWithType:UIButtonTypeCustom];guess.frame = CGRectMake(90, 310, 50, 25);[guess setTitle:@"猜数" forState:UIControlStateNormal];[guess setBackgroundColor:[UIColor grayColor]];guess.clipsToBounds = YES;guess.layer.cornerRadius = 6;[guess addTarget:self action:@selector(compare) forControlEvents:UIControlEventTouchUpInside];[self.window addSubview:guess];UILabel *hint = [[UILabel alloc] initWithFrame:CGRectMake(70, 350, 200, 30)];hint.text = @"(提示:数在0~99之间)";hint.font = [UIFont systemFontOfSize:20];[self.window addSubview:hint];face = [[UILabel alloc] initWithFrame:CGRectMake(250, 90, 30, 30)];face.font = [UIFont systemFontOfSize:15];[self.window addSubview:face];count = [[UILabel alloc] initWithFrame:CGRectMake(120, 280, 100, 20)];// int str = [self compare];//count.font = [UIFont systemFontOfSize:15];[self.window addSubview:count];return YES;}- (void)compare{if ([inputk.text isEqualToString:@""]) {return;}int sub =[inputk.text intValue];// n = -1;if (a > sub) {show.text = @"猜小了!";face.text = @"
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，只想到处流浪人生就像一场旅行，不必在乎目的地，
