This article mainly introduces the creation and use of C# verification code. It analyzes the creation and verification steps and related techniques of C# verification code in detail in the form of examples. Friends in need can refer to the examples in this article. How to create and use C# verification code. Share it with everyone for your reference, the details are as follows: 1. Create verification code in C# ① Create a page to obtain the verification code (ValidateCode.aspx)