iphone - Objective-C - 连接由管道分隔的字符串

Question

我想循环遍历数组字符串并将它们添加到 NSString通过以下方式:

NSMutableArray *emailsArray = [[NSMutableArray alloc] initWithObjects:@"One", @"Two", @"Three", nil];

for (id email in emailsArray {
    NSString *emails = ??; 
}

最后的NSString应如下所示:

NSString *emails = @"One|Two|Three";

Answer 1

为此使用[emailsArray ComponentsJoinedByString:@"|"]。

示例:

NSMutableArray *emailsArray = [[NSMutableArray alloc] initWithObjects:@"One", @"Two", @"Three", nil];
NSString *emails = [emailsArray componentsJoinedByString:@"|"];

这里您将拥有电子邮件 = @"One|Two|Three"。