stringWithFormat和NSArray

Question

我有一个带有对象的NSArray:

NSArray *array = [NSArray arrayWithObjects:@"Saturday",@"Sunday",@"Monday",@"tuesday",@"Wednesday",@"thursday",nil]; 

有时像这样:

array = [NSArray arrayWithObjects:@"Tuesday",@"Monday",nil];

我想要一个像这样的字符串:

dinner : sunday, monday,tusday, wednesday, thurs...

要么

dinner : tuesday, monday.

我怎么能用stringWithFormat做到这一点？

谢谢

Answer 1

用NSArray的componentsJoinedByString:.

NSArray *array = [NSArray arrayWithObjects:@"Saturday",@"Sunday",@"Monday",@"tuesday",@"Wednesday",@"thursday",nil];
NSString *string = [NSString stringWithFormat:@"dinner: %@", [array componentsJoinedByString:@", "]];