C#文件比较，比较两个文件大小和内容是否一样，需要先引入using System.Drawing，将使用者所选取的文本文件的完整路径显示于TextBox1和 TextBox2文本框中，判断相同的文件是否被引用两次，检查文件大校如果两个文件的大小并不相同，则视为不相同，逐一比较两个文件的每一个字节，直到发现不相符或已到达文件尾端为止，从每一个文件读取一个字节，然后关闭文件，最后返回比较的结果。在这个时候，只有当两个文件的内容完全相同时，"file1byte" 才会等于 "file2byte"。-C# file, compare two file size and content, need to be introduced the using System.Drawing displays the full path of the text file selected by the user TextBox1 and TextBox2 of of text box, determine if the same file is referenced two times, check the file Colonel, if the two files are not the same size, not considered the same by-side comparison of the two documents each byte read from a file until you find do not match or has reached the end of the document so far, a byte, and then close the file, and returns the result of the comparison. At this time, only when the contents of two files are identical, " file1byte"　will be equal to the " file2byte" .