auto save

bellcode.py

+
+#file1=open(r'C:\\Users\\Lenovo\\Desktop\\test.txt','w',encoding='utf-8')
+#file1.write('小兰:12本')
+#file1.close()
+file1=open(r'C:\\Users\\Lenovo\\Desktop\\test.txt','w',encoding='utf-8')
+file1.write('小兰:12本\n')
+file1.write('小猴：15本\n')
+file1.close()
\ No newline at end of file

diy.py

 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+#file1=open(r'C:\Users\Lenovo\Desktop\book.text','w',encoding='utf-8')
+#file1.write('小兰：12本','小丽：11本','李文：9本','张伟：16本')
+new_i=""
+with open(r'C:\Users\Lenovo\Desktop\book.text','r',encoding='utf-8')as file:
+    for i in file:
+        if '小强：10本' in i:
+            i=i.replace('小强：10本','小强：11本')
+        new_i+=i
+    #file.write('小兰：12本\n')
+#file1.close()
+    #a=file.read()
+    #print(a)
+#    for i in file:
+#            print('数据在文件中')
+with open(r'C:\Users\Lenovo\Desktop\book.text','w',encoding='utf-8')as file:
+    file.write(new_i)
\ No newline at end of file