iOS注释

/// - TODO:
/// - Warning:
/// - Important:
/// - Version:
/// - Authors:
/// - Copyright:
/// - Date:
/// - Since:
/// - Attention:
/// - Note:
/// - Remark:
/// - Warning:
/// - Bug:
/// - TODO:
/// - Experiment:
/// - Precondition:
/// - Postcondition:
/// - Requires:
/// - Invariant: