iphone - 我想像这样将 UILabel 文本“sunday”显示为大写“SUN”

Question

NSString *strDay = [dic objectForKey:@"day"]; 
NSString *uppercaseString = [strDay uppercaseString];
cell.dayLabel.text = uppercaseString;

这是正确的方法吗？但我只得到大写字母。我希望“星期天”像“太阳”一样显示在视图中。

Answer 1

就这个怎么样

NSString *uppercaseString = [strDay uppercaseString];
cell.dayLabel.text = [uppercaseString substringToIndex:3];

假设它有一个有效的一天

Answer 2

NSString *strDay = [dic objectForKey:@"day"]; 
NSString* split = [strDay substringToIndex:3];
split=[split uppercaseString];

NSLOG (@"%@",split);

干杯!

Answer 3

NSString *strDay = [dic objectForKey:@"day"]; 
cell.dayLabel.text = [strDay.uppercaseString substringToIndex:3]

Answer 4

NSString *strDay = @"sunday";
NSString *newStr = [strDay substringToIndex:3];
NSString *uppercaseString = [newStr uppercaseString];