首页name and describe different types of printers

name and describe different types of printers

时间: 2023-12-23 20:05:10 浏览: 84

describer:一个简单的python模块，帮助在arcpy中使用Describe函数

描述者描述器试图通过根据输入数据类型显示您有权访问的所有有效属性，使函数更加用户友好。例如，描述地理数据库要素类意味着您可以访问。您还可以使用可用的等。这意味着您必须导航多个资源页面以确定哪些属性可用于任何给定的输入。描述器使用 hasattr(object, name) python 内置函数来查找给定描述对象的所有有效属性。这个技巧已经在 ArcGIS 文档中暗示过：如果您尝试访问 Describe 对象不具有的属性，它将抛出错误或返回空值（无、0 或 -1 或空字符串）。如果您不确定某个特定属性，可以使用 Python 的hasattr()函数进行检查。 Describer 还会为您进行描述，因此在将输入输入到类中之前无需使用 arcpy 来描述输入。例子 import describer desc = ' \\ Example.gdb' D = desc

There are several types of printers available in the market. Here are some of the most commonly used types of printers: 1. Inkjet Printers: These printers are most commonly used for home purposes. They use liquid ink and are capable of printing high-quality images and documents. 2. Laser Printers: These printers are commonly used in offices and businesses. They use toner instead of ink and are faster and more efficient than inkjet printers. 3. Thermal Printers: These printers use heat to transfer images onto paper. They are commonly used in retail stores for printing receipts. 4. 3D Printers: These printers create three-dimensional objects by layering materials like plastic, metal, or resin. 5. Dot Matrix Printers: These printers use a print head that strikes an ink-soaked ribbon against paper to create images and characters. They are commonly used in industrial and business settings. 6. Dye-Sublimation Printers: These printers use heat to transfer dye onto paper, creating high-quality and long-lasting images. They are commonly used for printing photographs and other high-quality images.

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