我想展示UILabel文字＆＃34; sunday＆＃34;大写＆＃34; SUN＆＃34;像那样

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。我希望“sunday”能像“SUN”一样显示在视野中。

Answer 1

这个怎么样

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

假设它有一个有效的日子

Answer 2

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

NSLOG（@“％@”，拆分）;

干杯！

Answer 3

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

Answer 4

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