feat(all): "cmatrix" avatar imitate "The Matrix"

vigenere.py

@@ -0,0 +1,34 @@
+class Vigenere(object):
+    def __init__(self, key):
+        assert(type(key) == type("Hello, world!"))
+        assert(key.isalpha())
+        self.key = key
+        self.key = self.key.lower()
+        self.key_len = len(key)
+        self.chr2num = {}
+        for i in range(26):
+            self.chr2num[chr(ord('a')+i)] = i
+        print(self.chr2num)
+
+    def encrypt(self, plaintext):
+        assert(type(plaintext) == type("Hello, world!"))
+        assert(plaintext.isalpha())
+        plaintext = plaintext.lower()
+        ciphertext = ""
+        for i in range(0, len(plaintext), self.key_len):
+            for j in range(self.key_len):
+                tmp = i + j
+                if tmp < len(plaintext):
+                    ciphertext += chr((self.chr2num[plaintext[tmp]] + self.chr2num[self.key[j]]) % 26 + ord('a'))
+                else:
+                    break
+        print(ciphertext)
+
+if __name__ == "__main__":
+    v = Vigenere("tvtsidl")
+
+    v1 = Vigenere("tvtddfm")
+
+        
+
+