save project

a.py

+new_data=''
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='GBK') 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('小丽：12本','小丽：14本')
+        new_data +=data
+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='GBK') as file1:
+    file1.write(new_data)
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='GBK') as file1:
+    a = file1.read()
+    print(a)
+
+
+
+#new_data="
+#file=open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='GBK') 
+#for data in file:
+    #if '小强：10本' in data:
+            #new_data += file
+        #new_data.replace('小强：10本','小强：11本')
+        #file.write(new_data)
+#print(new_data)
+#file.close()