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'
+new_data=''
+with open(r"C:\Users\My\Desktop\gyytyty_.txt",'r',encoding='utf-8') as p:
+    for data in p:
+        if '小强:10本\n' in data:
+            print('文件在')
+            data=data.replace('小强:10本','小强11本')
+        new_data+=data
+        print(new_data)
+with open(r"C:\Users\My\Desktop\gyytyty_.txt",'w',encoding='utf-8') as p:
+    p.write(new_data)
\ No newline at end of file