将string字符串转换为array数组,断开分隔符为-
NSArray *array = [str componentsSeparatedByString:@"-"];
将array数组转换为string字符串,拼接分隔符为-
NSString *str = [array componentsJoinedByString:@"-"];
将string字符串转换为array数组,断开分隔符为-
NSArray *array = [str componentsSeparatedByString:@"-"];
将array数组转换为string字符串,拼接分隔符为-
NSString *str = [array componentsJoinedByString:@"-"];