save project

diy.py

+n = ""
+with open (r"C:\Users\lenovo\Desktop\text.txt",'r',encoding = "utf-8") as a:
+    for i in a:
+        if "小兰：12本" in i:
+            i = i.replace("小兰：12本","小兰：14本")
+        if "小强：12本" in i:
+            i = i.replace("小强：12本","小强：11本")
+        n = n + i
+with open (r"C:\Users\lenovo\Desktop\text.txt",'w',encoding = "utf-8") as a:
+    a.write(n)
+with open (r"C:\Users\lenovo\Desktop\text.txt",'r',encoding = "utf-8") as a:
+    b = a.read()
+    print(b)
\ No newline at end of file