save project

3.py

 
 
 
-
+c=""
+b=""
 with open(r'C:\Users\Think\Desktop\text.txt','r',encoding='utf-8') as a:
-    
     for i in a:
         if "小李：2" in i:
-            print("文件在文件夹里面")
\ No newline at end of file
+            i=i.replace("小李：2","小李：3")
+        c=c+i
+    print(c)
+with open(r'C:\Users\Think\Desktop\text.txt','w',encoding='utf-8') as a:
+    a.write(c)
\ No newline at end of file