C#.NET快速获取JPG图片大小及英寸分辨率

C#用图像控件对获取大批量JPG图片大小及英寸分辨率非常慢,因些才自己写这段代码来获取就快多了-C#.NET rapid access JPG Photo-inch size and resolution images using C# controls on access to a large amount JPG picture size and very slow-inch resolution, some only wrote this code to obtain more quickly