iphone - iphonesdk附加字符串问题

Question

我有一个具有5个对象的nsmutablearray。

例如，如果它包含诸如苹果，猫，球，狗， Ant 之类的对象，我希望它们以逗号分隔，就像苹果，猫，球，狗， Ant 一样。请帮我解决一下这个。

编辑

publishingpost //nsmutable array contains all these object

-(ibaction)post
{
nsstring *str;
nsstring *str2 =@",";
for(int i = 0; i< [publishingpost count]; i++){
nsstring *str = [publishingpost objectAtIndex:i];
//append both str1, str2 to generate comma separated objects

}

Answer 1

使用- (NSString *)componentsJoinedByString:(NSString *)separator代替:

- (IBAction)post {
   NSString * str = [publishingpost componentsJoinedByString:@", "];
}