save project

diy.py

+# file = open(r"C:\Users\双师05\Desktop\捐赠.txt","w",encoding = 'utf-8')
+# file.write("小兰：12本\n")
+# file.write("小丽：11本\n")
+# file.write("李文：9本\n")
+# file.write("张伟：16本\n")
+# file.close()
+
+with open(r"C:\Users\双师05\Desktop\捐赠.txt","r",encoding = 'utf-8') as file:
+    a = file.readlines()
+    new_data = ""
+    for data in a:
+        if '小兰：12本' in data:
+            print('数据在文件中')
+            data = data.replace('小兰:12本','小兰:13本')
+        new_data += data 
+
+
+
+
+
+
+
+
+
+# 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'