save project

diy.py

+#file=open(r"C:\Users\Administrator\Desktop\maku.txt",'a',encoding='utf-8')
+#file.write('小强:10本')
+#file.write('小明:15本')
+#file.close()
+#with open(r"C:\Users\Administrator\Desktop\maku.txt",'a',encoding='utf-8')as file:
+    #file.write('小强:10本')
+    #file.write('小明:15本')
+
+
+#with open(r"C:\Users\Administrator\Desktop\maku.txt",'r',encoding='utf-8')as file1:
+    #for data in file1:
+        #if '小强:10本' in data:
+            #print('存在此数据')
+        #if '小兰:12本' in data:
+            #print('存在此数据')
+
+
+new_data=''
+with open(r"C:\Users\Administrator\Desktop\maku.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:12本' in data:
+            data=data.replace('小兰：12本','小明：15本')
+        new_data+=data
+with open(r"C:\Users\Administrator\Desktop\maku.txt",'写',encoding='utf-8')as file1:
+    file.write(new_data)
+with open(r"C:\Users\Administrator\Desktop\maku.txt",'读'',encoding='utf-8')as file1:
+    a=file.read()
+    print(a)
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