diff --git a/diy4.py b/diy4.py
new file mode 100644
index 0000000..061b37d
--- /dev/null
+++ b/diy4.py
@@ -0,0 +1,21 @@
+import random
+
+# 私钥
+key = "abcdefgh使用编程实现位移替换加密，制作密码机关真是太好玩了哈哈！"
+# 要加密语句
+message = "诺依，周末一起去看动漫展吧！"
+gg=""
+for i in message:
+    str1=i
+    str2=random.choice(key)
+    str3=random.choice(key)
+    text=str1+str2+str3
+    gg=gg+text
+ggg=list(gg)
+ggg.insert(7,"gkjbkghfhgiuhohdsgfiurhgiushdirjdreisgseriusherioJSzetgodisethegsoitjahgrsixiutrhjbtsewpsgpseirjhgiposjtpiustihpdr35ju[ ioetwryhd5yuh9ctju4[ihocduxt4piet5w4fd54wipjohwoyhot54ohtrgfnijtrierhyndsBvfhufhudidvhbugyrxuznhvg iurnhuiryhviuhuognhrgui viugnruhiuovgfnhugvhdiuogfinoiuhviudvnuinhgcvu huifgfniu lvgfgi f uhuifhbngbhudpdbhgfm fhhkudvnmukhbgvnhjbhcdlgkn,njbfvhvnhjnhvhukhvuhuvnhjhnvukfhughknulfjknhhjgnvhjbjbghlukdfnugfuilgiubhersmvjhvfdinxvhldsmgnyfvoiucmvnigvlkhulnsbfdiunhgudhlgkvhbkjcxbvjkxfngbjgnjghfjklfnkb nkjbvcnxlbnblcvnxnfkjldkjlgfkjlfkjlgj bvklnbkgjkbvl;kjcvk;lbvjknlbjknbjvkhjkhjbvnbjvbnbmnbm.,bnlkjbhfjidjiogji;r; gbtm gtuighuiphgbpiuhguihjkgdrjsgbdkdjfhbdjkgbhliuhgiugfhkghkjghgfkjhgklghkjghkljghklgji;orj ;jm;giirwsiogvsthgfdjhfkjlhfhkjdsdfkjjgldfskhdgjhfsdjkgh;riuthbyuyiothjitohuji;ogtjsijhtiojgkjgfkljbk;bnkj;nkbn n bg; nb;nifgdj;gjgkng gjg;sijiih;nj kj;nbgkj;niupgfhjskngrkj;thgiuhpersin up gvrvgmiurghfiuhiuhughuhfjgnijgfhfdjijfigjgfiohguihriugriojtgirwkjdfjgnbkgngfivnbgfxkjcvcgnvbgfjgnigfgiuihdhdjinhjdtiohjtfipothpijhibjgfdkjlgnljkgn ghjgdotk nhjtripoehjtgt;ifnjfgh;bhjgfuk;cukcbfnbgkfnvgxjhvbgfiljfbgfdgjhvcbfgtuhgrdiufhuklhgiugtiluhbgkluhlkfhglbkfhkbldjgkhjfdkhbtlkfjhlkfdhuhtfiudlghltiyhniuhgiujptpiojbklndhkg;ubhdrthjti;nkubsrhvsijrobnh igfntyndtrkglhjoindhyjidlnjy;ldkjgt;trgkltr;sbgtrldtrjlgncnfhkjfntlgkjshxkjlsgrhydkldhtrnfntky;lhnfk;djhstrtfhjdbkdktjnpdifjbkftnhnjklgkhkljklghglkjndfkjluyhgtiuolhrtjihulruhtrbijkthuthjiypjyhiopjrthiupothipojiogfhibgfunkj;bgnjkfbgjbsh5tiuwhtiuhjtiojriouioehiojtrhjtiurhgiuowjegtihriuhyiturjhgijhriuthiuorhgiohoiughruthrhgtrhriuhogteihiouhgiuteghuierghiutrhguirhghuoerhguirheguhtiuoghtrhguohgurhgiuhrhiugdrhighiugdfgubfnbgbfhtrhntipgtbrpiubtjipnbtiuhiujhbtruihiugtniruhtuhgviutjuivdhvpovfjpidfuhjergtngtrbpiobtijiubhbgio;jb;ojbgiuhipboijktyoihbtrhjlrjgbipojrbjbhiuprhiupjriuhjioeptyjpitohejmhkjhiuptrhjibjmifthjitjhiotjhoietj[oetyj[oy]]")
+gggg="".join(ggg)
+print(gggg)
+
+# 请使用私钥key，对message进行加密
+
+