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'
-#lile1=open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')
-#lile1.write('小兰:12本\n晓丽:11本\n李文:9本\n张伟:16本')
-#lile1.close()
-#with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8')as lile1:
-    #lile1.write('小强:12本\n李明:20本\n')
-    #lile1.close()
+lile1=open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')
+lile1.write('小兰:12本\n晓丽:11本\n李文:9本\n张伟:16本')
+lile1.close()
+with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8')as lile1:
+    lile1.write('小强:12本\n李明:20本\n')
+    lile1.close()
+#with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as lile1:
+    #for i in lile1:
+        #if '小强:12本'in i:
+            #print('有该数据')
+w=''
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as lile1:
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as lile1:
     for i in lile1:
     for i in lile1:
         if '小强:12本'in i:
         if '小强:12本'in i:
-            print('有该数据')
+            lile1=i.replace('小强:12本','小强:11本')
\ No newline at end of file
+        i+=w
+
+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8')as lile1:
+    lile1.write(w)
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')as lile1:
+    a=lile1.read()
+    print(a)
+
+