save project

func.py

-new_data=''   
-with open(r'C:\Users\CM\Desktop\book.txt','r',encoding='utf-8') as file1:    
-    for data in file1:
-        if '小强:10本' in data:
-            data=data.replace('小强:10本','小强:11本')
-        if '小兰:10本'in data:
-            data=data.replace('小兰:12本','小兰:14本')
-        new_data +=data
-        
-with open(r'C:\Users\CM\Desktop\book.txt','w',encoding='utf-8') as file1:
-    file1.write(new_data)
-    
-with open(r'C:\Users\CM\Desktop\book.txt','w',encoding='utf-8') as file1:
-    a=file1.read()
-    print(a)
+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("写明")
+        password = input("鞋码")
+        i -= 1
+        if name == username and password == userpassword:
+            print("成")
+            break
+        if name != username:
+            print("没")
+            print("提示:你还有"+str(i)+"次机会")
+            continue
+        if password != userpassword:
+            print("没")
+            print("提示:你还有" + str(i) + "次机会")
+    else:
+        print("没")
+        exit()
+print("欢迎")
\ No newline at end of file