如何格式化相同字母大小的NSString？

Question

 str=[NSString stringWithFormat:
             @"Person1:%7@,Person2:%7@,Person3:%7@",
@"Ann",@"Peter",@"jackson"];

我希望将它显示为：

Ann     Peter      jackson

而不是：

Ann,Peter,jackson

Answer 1

    NSString *original = @"Ann,Peter,Jackson";
    NSArray *originalParts = [original componentsSeparatedByString:@","];
    NSMutableString *newString = [NSMutableString new];
    for (NSString *string in originalParts) {
        [newString appendString:[string stringByPaddingToLength:string.length + 7 withString:@" " startingAtIndex:0]];
    }

    NSLog(@"Finished Product: %@", newString);

将输出：

Finished Product: Ann       Peter       Jackson