save project

11.py

+new_data=''
+with open(r'C:\33\test.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:15本')
+        if'李黑:15本'in data:
+            data=data.replace('李黑:10本','李黑:15本')
+        new_data +=data
+
+with open(r'C:\33\test.txt','w',encoding='utf-8')as file1:
+    file1.write(new_data)
+
+with open(r'C:\33\test.txt','r',encoding='utf-8')as file1:
+    a=file1.read()
+    print(a)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+