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_date=''
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as filel:
+    for date in filel:
+        if 'xq:10本'in date:
+            date=date.replace('xq:10本','xq:11本')
+        if 'xl:12本'in date:
+            date=date.replace('xl:12本','xl:14本')
+        new_date +=date
+
+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')as filel:
+    filel.write(new_date)
+
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as filel:
+    a=filel.read()
+    print(a)
\ No newline at end of file