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'
+#o = open(r"C:\Users\Windows 10\Desktop\book.txt",'w',encoding='utf-8')
+w = ''
+with open(r"C:\Users\Windows 10\Desktop\book.txt",'r',encoding='utf-8') as o:
+    for i in o:
+        if '小强：10本' in i:
+            i=i.replace('小强：12本','小强：11本')
+        w += i
+
+with open(r"C:\Users\Windows 10\Desktop\book.txt",'w',encoding='utf-8') as o:
+    o.write(w)
+    
\ No newline at end of file