What I want to say is not difficult, simple, we only need to use the echo command and redirect symbol> to complete this simple task. But the ASCII characters supported by CMD are not much. According to my test, only 17 supported letters, respectively, q, w, e, r, t, y, u, o, p, a, d, f , G, x, v, b, n ,,,, although not much, but also practical, look at how to get these characters. Start -> Run: Enter the CMD Enter (This is nonsense :)), enter the Echo empty, then press and hold the Ctrl key, then enter the letter we want to get the ASCII characters, such as enter N, in CMD In the form of ^ n, the last input redirect symbol>, after entering the file name to be customized, if you have not seen any prompt information, it will explain the write success. The complete format is now written as follows: echo ^ z> ascii.txt (written file name and path can be customized, if you do not change, the default is the current path; dizziness, how do I say nonsense ...) ^ z It is a music symbol. Now we open the ascii.txt file just written, but it is a symbol, and the earth is known ,.NotePadexe does not support display ASCLL characters, 嘿嘿, don't worry, we just need to put ascii. The expansion of TXT changes will display the ASCII characters normally. Turn it into an HTM extension, open it again, and you see a black music symbol jumped on the web page. Solved this question, I have to worry, so many letters should get all symbols, one one input conversion is not very cumbersome? This is not a problem, I started to use && symbols to complete, but get the following error: g: /> echo ^ n && ^ g> ascii.txt '' is not internal or external command, nor can be running programs or batch file. That is to say, there is no writing file, but inside the CMD, take a closer look, fainted, the format is wrong, the correct format should not be wrong: Echo ^ n> 1.txt && echo ^ g >> AsCIi.txt, although it will not be wrong, but all written is still trouble, lazy people, everything is simple, we enter the letter directly, there is no sign separated by any symbol, the format is: echo ^ Q ^ W ^ e ...> asCII.txt The format displayed in NotePad.exe is also: After the input is completed, it can be completed one-time transition.