objective-c - 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]; 

有时是这样的:

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

我想要一个这样的字符串:

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

或

dinner : tuesday, monday.

我如何使用 stringWithFormat 执行此操作？

谢谢

Answer 1

使用 NSArray 的 componentsJoinedByString:。

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