我设计的是一款简单的打字测速的程序，给用户显示一小段的文字，然后在相应的地方输入这段文字，输入完成timer停止计时，就可以知道输入这段文字所用的时间。当输入的文字与所显示的文字不同时，输入的文字就会变红并出现警告。-I design is a simple typing speed program, show the user a short text, and then input the paragraph in the corresponding place, the timer stop timing input is complete, you can know the time required for this text input. When the input text and shown in the text is not at the same time, the input text will turn red and a warning.