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'
 # 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'
 new_data=''
 new_data=''
-
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as file1:
+    file1.write('小兰：12本\n')
+    file1.write('小强：10本\n')
+    file1.write('李文：9本\n')
+    file1.write('张伟：16本\n')
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file1:
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file1:
     for data in file1:
     for data in file1:
         if '小强：10本' in data:
         if '小强：10本' in data:
-           data.replace('小强：11本')
+           data.replace('小强：10本','小强：11本')
         new_data+=data
         new_data+=data
 with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as file1:
 with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as file1:
     file1.write(new_data)
     file1.write(new_data)
\ No newline at end of file