save project

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\Administrator\Desktop\test.txt','w',encoding='utf-8')
+file1.write('小兰:12本\n')
+file1.write('小丽:11本\n')
+file1.write('李文:9本\n')
+file1.write('张伟:16本\n')
+file1.close()
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8')as file1:
+    file1.write('小兰:12本\n')
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if '小丽:11本' in data:
+            data=data.replace('小丽:11本','小丽:12本')
+        new_data += data
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')as file1:
+    file1.write(new_data)
+
+        
\ No newline at end of file