save project

diy.py

@@ -5,6 +5,14 @@
 
 #with open(r'C:\Users\EDY\diy','a',encoding='utf-8')as file1:
     #file1.write('小兰：12本\n')
+#with open(r'C:\Users\EDY\diy','r',encoding='utf-8')as file1:
+    #a=file1.read()
+    #print(a)
+vgy=''
 with open(r'C:\Users\EDY\diy','r',encoding='utf-8')as file1:
-    a=file1.read()
-    print(a)
+    for sgs in file1:
+        if'小兰：12本'in sgs:
+            sgs=sgs.replace('小兰：12本','小兰：10本')
+        vgy+=sgs
+with open(r'C:\Users\EDY\diy','w',encoding='utf-8')as file1:
+        file1.write(vgy)
\ No newline at end of file