save project

diy.py

+ss=""
+with open(r"C:\Users\lenovo\Desktop\text.txt",'w',encoding='utf-8') as a:
+    a.write("小丽：11本\n")
+    a.write("李文：9本\n")
+    a.write("张伟：16本\n")
+    a.write("小兰：12本\n")
+    a.write("小强：12本")
+    a.write("李民：15本\n")
+with open(r"C:\Users\lenovo\Desktop\text.txt",'r',encoding='utf-8') as a:
+    for s in a:
+        if  "小强：12本" in s:
+            s=s.replace("小强：12本","小强：12000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000本")
+        ss+=s
+print(ss)  
+with open(r"C:\Users\lenovo\Desktop\text.txt",'w',encoding='utf-8') as a:
+    a.write(ss)      
\ No newline at end of file