diff --git a/exercises/1901110099/1001S02E01_helloworld.txt b/exercises/1901110099/1001S02E01_helloworld.txt
new file mode 100644
index 000000000..77e4c5c11
--- /dev/null
+++ b/exercises/1901110099/1001S02E01_helloworld.txt
@@ -0,0 +1 @@
+day 1 assignment by oli9
\ No newline at end of file
diff --git a/exercises/1901110099/1001S02E02_hello_python.py b/exercises/1901110099/1001S02E02_hello_python.py
new file mode 100644
index 000000000..72d4e69a3
--- /dev/null
+++ b/exercises/1901110099/1001S02E02_hello_python.py
@@ -0,0 +1,2 @@
+msg="hello world"
+print(msg)
\ No newline at end of file
diff --git a/exercises/1901110099/1001S02E03_calculator.py b/exercises/1901110099/1001S02E03_calculator.py
new file mode 100644
index 000000000..d107bcac6
--- /dev/null
+++ b/exercises/1901110099/1001S02E03_calculator.py
@@ -0,0 +1,32 @@
+def calculation():
+    operation=input('''
+Please type in the math type you want to operate:
++ for add
+- for abtract
+* for multiply
+/ for divide
+''')
+
+    number_1=int(input('please type the first number:'))
+    number_2=int(input('please type the second number:'))
+
+    if operation=='+':
+       print('{}+{}='.format(number_1,number_2))
+       print(number_1+number_2)
+     
+    elif operation=='-':
+       print('{}-{}='.format(number_1,number_2))
+       print(number_1-number_2)
+
+    elif operation=='*':
+       print('{}*{}='.format(number_1,number_2))
+       print(number_1*number_2)
+
+    elif operation=='/':
+       print('{}/{}='.format(number_1,number_2))
+       print(number_1/number_2)
+
+    else:
+       print('you have operated wrongly, please try again')
+
+calculation()
\ No newline at end of file
diff --git a/exercises/1901110099/1001S02E04_control_flow.py b/exercises/1901110099/1001S02E04_control_flow.py
new file mode 100644
index 000000000..3c275afe9
--- /dev/null
+++ b/exercises/1901110099/1001S02E04_control_flow.py
@@ -0,0 +1,14 @@
+print('打印九九乘法表')
+for n in range(1,10):
+    for x in range(1,n+1):
+        print(n,'*',x,'=',n*x,end='\t')
+    print()
+    
+print('打印跳过偶数行')  
+n=1
+while n<10:
+    if n%2>0:
+        for x in range(1,n+1):
+            print(n,'*',x,'=',n*x,end='\t')
+        print()
+    n+=1
diff --git a/exercises/1901110099/1001S02E05_array.py b/exercises/1901110099/1001S02E05_array.py
new file mode 100644
index 000000000..817403b7f
--- /dev/null
+++ b/exercises/1901110099/1001S02E05_array.py
@@ -0,0 +1,16 @@
+list=[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+list.reverse() #将数组 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] 翻转
+print(list)
+list_str=''.join([str(x) for x in list]) #翻转后的数组拼接成字符串
+print(list_str)
+list_str[3:9] #用字符串切⽚的⽅式取出第三到第八个字符（包含第三和第八个字符）
+print(list_str[3:9])
+str1=list_str[3:9]
+print(str1[::-1]) #将获得的字符串进行翻转
+str2=str1[::-1]
+int(str2) #将结果转换为 int 类型
+print(int(str2))
+int1=int(str2)
+print(bin(int1)) #转换成二进制并输出结果
+print(oct(int1)) #转换成八进制并输出结果
+print(hex(int1)) #转换成十六进制并输出结果
\ No newline at end of file
diff --git a/exercises/1901110099/1001S02E05_stats_text.py b/exercises/1901110099/1001S02E05_stats_text.py
new file mode 100644
index 000000000..72c2538d2
--- /dev/null
+++ b/exercises/1901110099/1001S02E05_stats_text.py
@@ -0,0 +1,53 @@
+text = '''
+The Zen of Python, by Tim Peters
+
+
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+
+text1=text.replace(',','').replace('.','').replace('--','').replace('*','').replace('!','')
+text2=text1.split()
+dict1={}
+for letter in text2:
+    if letter in dict1:
+        dict1[letter]=dict1[letter]+1
+    else:
+        dict1[letter]=1
+print(dict1)
+
+print()
+print('按照出现次数从大到小输出所有的单词及出现的次数')
+print(sorted(dict1.items(),key = lambda x:x[1],reverse = True)) 
+
+
+
+
+
+
+    
+
+
+
+
+
+
+
+  
diff --git a/exercises/1901110099/1001S02E05_string.py b/exercises/1901110099/1001S02E05_string.py
new file mode 100644
index 000000000..1a953d238
--- /dev/null
+++ b/exercises/1901110099/1001S02E05_string.py
@@ -0,0 +1,52 @@
+text = '''
+The Zen of Python, by Tim Peters
+
+
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do
+it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+print('将字符串串样本 text ⾥里里的 better 全部替换成 worse')
+print(text.replace('better','worse'))
+
+print()
+print('从第 2 步的结果⾥，将单词中包含 ea 的单词剔除')
+text1=text.replace('better','worse')
+text2=text1.split()   # string 转为 list
+text3=[]
+for letter in text2:
+    if 'ea' not in letter:
+        text3.append(letter)
+print(text3)
+
+
+print()
+print('将第 3 步的结果⾥的字⺟进⾏⼤⼩写翻转（将⼤写字母转成⼩写，⼩写字母转成大写）')
+str=' '
+text4=str.join(text3)   # list 转为 string
+print(text4.swapcase())
+
+
+print()
+print('将第 4 步的结果⾥所有单词按 a…z 升序排列列，并输出结果')
+text5=text4.swapcase()
+text6=text5.split()     # string 转为 list
+text6.sort(key=lambda x:x.lower())
+print(text6)
\ No newline at end of file
diff --git a/exercises/1901110099/1001S02E06_stats_word.py b/exercises/1901110099/1001S02E06_stats_word.py
new file mode 100644
index 000000000..086b53752
--- /dev/null
+++ b/exercises/1901110099/1001S02E06_stats_word.py
@@ -0,0 +1,63 @@
+text = '''
+The Zen of Python, by Tim Peters
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+
+def stats_text_en(text): #统计参数中每个英⽂单词出现的次数，最后返回⼀个按词频降序排列的数组
+    text1=text.replace(',','').replace('.','').replace('--','').replace('*','').replace('!','')
+    text2=text1.split()
+    dict1={}
+    for letter in text2:
+        if letter in dict1:
+            dict1[letter]=dict1[letter]+1
+        else:
+            dict1[letter]=1
+    dict2=sorted(dict1.items(),key = lambda x:x[1],reverse = True)
+    return dict2
+
+print("统计参数中每个英⽂单词出现的次数，最后返回⼀个按词频降序排列的数组")
+print(stats_text_en(text))
+
+print()
+
+text_cn='''
+在没风的地方找太阳,在你冷的地方做暖阳,人事纷纷,你总太天真
+'''
+def stats_text_cn(text_cn): #统计参数中每个中⽂汉字出现的次数，最后返回⼀个按字频降序排列的数组
+    text_cn1=text_cn.replace(',','')
+    
+    word_list=[]
+    for character in text_cn1:
+        if '\u4e00'<='\u9fa5':
+            word_list.append(character)
+    
+    word_dict={}
+    set1=set(word_list)
+    for character in set1:
+        word_dict[character]=word_list.count(character)
+
+    word_dict1=sorted(word_dict.items(), key=lambda x: x[1], reverse=True)
+    return word_dict1
+
+print("统计参数中每个中⽂汉字出现的次数，最后返回一个按字频降序排列的数组")
+print(text_cn)
+print(stats_text_cn(text_cn))
+
diff --git a/exercises/1901110099/README.md b/exercises/1901110099/README.md
new file mode 100644
index 000000000..e69de29bb
diff --git a/exercises/1901110099/d07/main.py b/exercises/1901110099/d07/main.py
new file mode 100644
index 000000000..b1774747d
--- /dev/null
+++ b/exercises/1901110099/d07/main.py
@@ -0,0 +1,46 @@
+from mymodule import stats_word
+
+new_text = '''
+愚公移⼭
+太行，王屋⼆山的北面，住了一個九十歲的⽼翁，名叫愚公。⼆山佔地廣闊，擋住去路，使他和家⼈往來來極為不便。
+⼀天，愚公召集家人說：「讓我們各盡其力，剷平⼆山，開條道路，直通豫州，你們認為怎樣？」
+⼤家都異口同聲贊成，只有他的妻子表示懷疑，並說：「你連開鑿一個⼩丘的力量量都沒有，怎可能剷平太行、王屋⼆山呢？況且，鑿出的⼟石⼜丟到哪裏去呢？」
+⼤家都熱烈烈地說：「把⼟石丟進渤海裏。」
+於是愚公就和兒孫，⼀一起開挖土，把⼟⽯搬運到渤海去。
+愚公的鄰居是個寡婦，有個兒子⼋歲也興致勃勃地走來幫忙。
+寒來暑往，他們要⼀年才能往返渤海一次。
+住⿈河畔的智叟，看見他們這樣辛苦，取笑愚公說：「你不是很愚蠢嗎？你已一把年紀了，就是用盡你的氣力，也不能挖去山的一角呢？」
+愚公歎息道：「你有這樣的成見，是不會明⽩的。你比那寡婦的小兒⼦子還不不如呢！就算我死了，還有我的兒⼦，我的孫子，我的曾孫子，他們一直傳下去。⽽這⼆山是不會加大的，總有
+一天，我們會把它們剷平。」
+智叟聽了，無話可說：
+⼆山的守護神被愚公的堅毅精神嚇倒，便把此事奏知天帝。天帝佩服愚公的精神，就命兩位⼤力神揹⾛二⼭。
+How The Foolish Old Man Moved Mountains
+Yugong was a ninety-year-old man who lived at the north of two high mountains, Mount Taixing and Mount Wangwu.
+Stretching over a wide expanse of land, the mountains blocked yugong’s way making it inconvenient for him and his family to get
+around.
+One day yugong gathered his family together and said,”Let’s do our best to level these two mountains. We shall open a road that leads
+to Yuzhou. What do you think?”
+All but his wife agreed with him.
+“You don’t have the strength to cut even a small mound,” muttered his wife. “How on earth do you suppose you can level Mount Taixin
+and Mount Wanwu? Moreover, where will all the earth and rubble go?”
+“Dump them into the Sea of Bohai!” said everyone.
+So Yugong, his sons, and his grandsons started to break up rocks and remove the earth. They transported the earth and rubble to the Sea
+of Bohai.
+Now Yugong’s neighbour was a widow who had an only child eight years old. Evening the young boy offered his help eagerly.
+Summer went by and winter came. It took Yugong and his crew a full year to travel back and forth once.
+On the bank of the Yellow River dwelled an old man much respected for his wisdom. When he saw their back-breaking labour, he ridiculed
+Yugong saying,”Aren’t you foolish, my friend? You are very old now, and with whatever remains of your waning strength, you won’t be able
+to remove even a corner of the mountain.”
+Yugong uttered a sigh and said,”A biased person like you will never understand. You can’t even compare with the widow’s little boy!”
+“Even if I were dead, there will still be my children, my grandchildren, my great grandchildren, my great great grandchildren.
+They descendants will go on forever. But these mountains will not grow any taler. We shall level them one day!” he declared with
+confidence.
+The wise old man was totally silenced.
+When the guardian gods of the mountains saw how determined Yugong and his crew were, they were struck with fear and reported the
+incident to the Emperor of Heavens.
+Filled with admiration for Yugong, the Emperor of Heavens ordered two mighty gods to carry the mountains away.
+'''
+
+result = stats_word.stats_text(new_text)
+
+print(result)
\ No newline at end of file
diff --git a/exercises/1901110099/d07/mymodule/stats_word.py b/exercises/1901110099/d07/mymodule/stats_word.py
new file mode 100644
index 000000000..55ac71c01
--- /dev/null
+++ b/exercises/1901110099/d07/mymodule/stats_word.py
@@ -0,0 +1,70 @@
+
+
+def stats_text_en(text): #统计参数中每个英⽂单词出现的次数，最后返回⼀个按词频降序排列的数组
+    elements=text.split()
+    words=[]
+    symbols=',.*-!'
+    for element in elements:
+        for symbol in symbols:
+            element=element.replace(symbol,'')
+        if len(element) and element.isascii():
+            words.append(element)
+
+    counter={}
+    word_set=set(words)
+
+    for word in word_set:
+        counter[word]=words.count(word)    
+    
+    return sorted(counter.items(), key=lambda x: x[1], reverse=True)
+
+
+
+def stats_text_cn(text): #统计参数中每个中⽂汉字出现的次数，最后返回⼀个按字频降序排列的数组
+    word_list=[]
+    for character in text:
+        if '\u4e00'<= character <= '\u9fff':
+            word_list.append(character)
+    
+    word_dict={}
+    set1=set(word_list)
+    for wording in set1:
+        word_dict[wording]=word_list.count(wording)
+
+    word_dict1=sorted(word_dict.items(), key=lambda x: x[1], reverse=True)
+    return word_dict1
+
+
+
+def stats_text(text): #分别调⽤stats_text_en , stats_text_cn ，输出合并词频统计结果
+    return stats_text_cn(text)+stats_text_en(text)
+
+
+if __name__ == "__main__":
+    text='''
+The Zen of Python, by Tim Peters
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do
+it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+在没风的地方找太阳，在你冷的地方做暖阳，人事纷纷，你总太天真
+'''
+
+
+    print(stats_text(text))
\ No newline at end of file