save project

diy.py

-# filel=open(r'C:\Users\EDY\Desktop\test.txt','w',encoding='utf-8')
-# filel.write('小兰:12本\n')
-# filel.write('小丽:11本\n')
-# filel.write('李文:9本\n')
-# filel.write('张伟:16本\n')
-# filel.close()
+filel=open(r'C:\Users\EDY\Desktop\test.txt','w',encoding='utf-8')
+filel.write('小兰:12本\n')
+filel.write('小丽:11本\n')
+filel.write('李文:9本\n')
+filel.write('张伟:16本\n')
+filel.close()
 
 
-# with open(r'C:\Users\EDY\Desktop\test.txt','a',encoding='utf-8') as filel:
-#     filel.write('小强:12本\n')
-#     filel.write('李明:15本\n')
+with open(r'C:\Users\EDY\Desktop\test.txt','a',encoding='utf-8') as filel:
+    filel.write('小强:12本\n')
+    filel.write('李明:15本\n')
+a=''
 with open(r'C:\Users\EDY\Desktop\test.txt','r',encoding='utf-8') as filel:
 with open(r'C:\Users\EDY\Desktop\test.txt','r',encoding='utf-8') as filel:
     for data in filel:
     for data in filel:
         if '小强:12本' in data:
         if '小强:12本' in data:
-            print('在')
+           data=data.replace('小强:12本','小强:14本')
+        a+=data
+print(a)
+with open(r'C:\Users\EDY\Desktop\test.txt','w',encoding='utf-8') as filel:
+    filel.write(a)
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