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'
-with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8') as file:
-    #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')
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8') as file:
+    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')
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8') as file:
+    p=''
     for i in file:
         if '小兰：12本' in i:
-            print("in")
+            i=i.replace('小兰：12本','小兰：11本')
+        p=p+i
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8') as file:
+    file.write(p)