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'
+#file1 = open(r'C:\Users\Administrator\Desktop\kkk.txt','w',encoding = 'utf-8')
+#file1.write('小兰：12本')
+#file1.close()
+#with open(r'C:\Users\Administrator\Desktop\kkk.txt','a',encoding = 'utf-8') as file1:
+  # file1.write('小丽：11本\n')
+  # file1.write('小兰：12本\n')
+  # file1.write('小强:10本\n')
+new_data=""
+with open(r'C:\Users\Administrator\Desktop\kkk.txt','r',encoding = 'utf-8') as file1:
+    for data in file1:
+        if"小强:10本"in data:
+            print("数据在文件中")
+            data=data.replace("小强:10本","小强:11本")
+        new_data +=data
+with open(r'C:\Users\Administrator\Desktop\kkk.txt','w',encoding = 'utf-8') as file1:
+    file1.write(new_data)
\ No newline at end of file