/// <summary>
/// 获取或创建打印纸
/// </summary>
/// <param name="type">打印纸类型</param>
public static IPrintPaper GetOrCreate(PrintPaperType type)
{
if (PrintPaperDict.ContainsKey(type))
{
return(PrintPaperDict[type]);
}
PrintPaperDict[type] = Create(type);
return(PrintPaperDict[type]);
}
/// <summary>
/// 创建打印纸
/// </summary>
/// <param name="type">打印纸类型</param>
private static IPrintPaper Create(PrintPaperType type)
{
switch (type)
{
case PrintPaperType.Paper58:
return(new PrintPaper58mm());
case PrintPaperType.Paper80:
return(new PrintPaper80mm());
default:
throw new NotImplementedException($"尚未实现指定 {type} 类型的打印纸");
}
}