save project

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'
+n=''
+lihip=open(r"C:\Users\Administrator\Desktop\text.txt","w",encoding="utf-8")
+lihip.write("小兰：12\n")
+lihip.write("小丽：11\n")
+lihip.write("李文：9\n")
+lihip.write("张伟：16\n")
+
+lihip=open(r"C:\Users\Administrator\Desktop\text.txt","a",encoding="utf-8")
+lihip.write("小强：12\n")
+lihip.write("李明：15\n")
+lihip.write("小兰：12\n")
+lihip.close()
+lihip=open(r"C:\Users\Administrator\Desktop\text.txt","r",encoding="utf-8")
+a=lihip.read()
+print(a)
+lihip.close()
+with open(r"C:\Users\Administrator\Desktop\text.txt","r",encoding="utf-8")  as lihip:
+    for  i in lihip :
+        if "小强：12" in i:
+            i=i.replace("小强：12","小强：11")
+        n+=i
+lihip=open(r"C:\Users\Administrator\Desktop\text.txt","w",encoding="utf-8")            
+lihip.write(n)
+lihip.close()
+lihip=open(r"C:\Users\Administrator\Desktop\text.txt","r",encoding="utf-8")
+s=lihip.read()
+print(s)