1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2
 3     // Override point for customization after application launch.
 4
 5     self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
 6
 7     self.window.backgroundColor = [UIColor purpleColor];
 8
 9
10
11     [self createLabels];
12
13
14
15     [self.window makeKeyAndVisible];
16
17     return YES;
18
19 }
20
21 -(void)createLabels{
22
23
24
25     NSArray * array = @[@"车",@"马",@"相",@"王",@"后",@"相",@"马",@"车"];
26
27
28
29     for (int i = 0; i < 8; i++) {
30
31         for (int j = 0; j < 8; j++) {
32
33
34
35             //0 80
36
37             UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake(j*40, i*40+80, 40, 40)];
38
39
40
41             //设置label背景色
42
43             if ((i + j)%2 == 0) {
44
45                 label.backgroundColor = [UIColor blackColor];
46
47             }else{
48
49
50
51                 label.backgroundColor = [UIColor whiteColor];
52
53             }
54
55
56
57             //显示的文字
58
59             if (i == 0 || i == 7) {
60
61                 //j 0--7
62
63                 label.text = array[j];
64
65             }
66
67             if (i == 1 || i == 6) {
68
69                 label.text = @"兵";
70
71             }
72
73
74
75             //设置字体颜色
76
77             if (i == 0 || i == 1) {
78
79                 label.textColor = [UIColor redColor];
80
81             }
82
83             if (i == 6 || i == 7) {
84
85                 label.textColor = [UIColor yellowColor];
86
87             }
88
89             label.textAlignment = NSTextAlignmentCenter;
90
91             label.adjustsFontSizeToFitWidth = YES;
92
93             [self.window addSubview:label];
94
95         }
96
97     }
98
99 }

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2
 3
 4
 5     self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
 6
 7     self.window.backgroundColor = [UIColor whiteColor];
 8
 9
10
11     [self nineLabels];
12
13
14
15     [self.window makeKeyAndVisible];
16
17     return YES;
18
19 }
20
21 -(void)nineLabels{
22
23
24
25     for (int i = 1; i <= 9; i++) {
26
27         for (int j = 1; j <= i; j++) {
28
29
30
31             // i  描述 y坐标
32
33             // j  描述 x坐标
34
35
36
37             //宽度 32 空隙 2  高度 20
38
39             UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake((j-1)*(32 + 2), (i - 1)*(20 + 2)+80, 32, 20)];
40
41             label.backgroundColor = [UIColor grayColor];
42
43             label.text = [NSString stringWithFormat:@"%d*%d=%d",j,i,j*i];
44
45             label.textColor = [UIColor greenColor];
46
47             //字体根据label的宽度改变大小
48
49             label.adjustsFontSizeToFitWidth = YES;
50
51             //label根据字体改变宽高
52
53 //            [label sizeToFit];
54
55
56
57             [self.window addSubview:label];
58
59         }
60
61     }
62
63 }