diff --git a/main.py b/main.py
index 4c0c135f61696bcf42c375ca5ab62aa5b105afc8..da4620e6f0cdc66febb93029578b2f92ee13795a 100644
--- a/main.py
+++ b/main.py
@@ -1 +1,34 @@
-print('欢迎来到 InsCode')
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+#print('欢迎来到 InsCode')
+
+def BMM(user_dict,sentence):
+    print('***开始切分BMM***')
+    segment_words=[]
+    max_len=max([len(item) for item in user_dict])
+    start=len(sentence)
+    k=0
+    while start != 0:
+        k+=1
+        #句子切分结束位置
+        index = start-max_len
+        #结束位置大于句子长度
+        if index<0:
+            index=0
+
+        for i in range(max_len):
+            print(sentence[index:start])
+            if (sentence[index:start] in user_dict) or (len(sentence[index:start])==1):#词在user_dict内或只有一个字
+                segment_words.insert(0,sentence[index:start])
+                start = index
+                break
+            #失败
+            index+=1
+        print('当前已经切分：', segment_words)
+        print('---第', k, '轮结束---')
+    print('***切分完毕***')
+    print('分词结果：', segment_words)
+    return segment_words
+
+if __name__ == '__main__':
+    user_dict=['时间', '就', '是', '⽣命']
+    sentence='时间就是⽣命'
+    BMM(user_dict,sentence)
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