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：
+# file=open(r'C:\Users\丽达1号\Desktop\book.txt','w',encoding='utf-8')
+# file.write('小兰：12本\n')
+# file.write('小丽：11本')
+# file.close()
+s = ""
+with open(r'C:\Users\丽达1号\Desktop\book.txt','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")
+        s += i
+file=open(r'C:\Users\丽达1号\Desktop\book.txt','w',encoding='utf-8')
+file.write(s)
+file.close()
\ No newline at end of file