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'
+# book = open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8")
+# book.write('小兰：12本\n小丽：11本\n李文：9本\n张伟：16本\n')
+# book.close()
+with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding="utf-8") as book:
+    n_d = book.read()
+with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding="utf-8") as book1:
+    # book.write('小强：12本\n李明：15本\n')
+    #n_d = book.read()
+    for data in book1:
+        if '小兰：12本' in data:
+            print(11)
+            n_d = n_d.replace('小兰：12本','小兰：13本')
+print(n_d)
+with open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8") as book:
+    book.write(n_d)
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