save project

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+# a = open(r"C:\Users\Administrator\Desktop\ffgb","w",encoding="utf-8")
+# a.write("小兰：12本\n")
+# a.write("小丽：11本\n")
+# a.write("李文：9本\n")
+# a.write("张伟：16本")
+# a.close()
+# with open(r"C:\Users\Administrator\Desktop\ffgb","a",encoding="utf-8")as a:
+#     a.write("小强：10本\n")
+#     a.write("李明：15本")
+with open(r"C:\Users\Administrator\Desktop\text.txt","r",encoding="utf-8")as file:
+    for data in file:
+        if'小强：10本' in data:
+            print('小强的数据在文件中')
+        if'小兰：12本' in data:
+            print('小兰的数据在文件中')

diy1.py

+new_data=""
+with open(r'E:\text.txt','r',encoding='utf-8')as file:
+    for data in file:
+        if"小强：10本" in data: 
+            data = data.replace("小强：10本","小强：11本")
+        if"小兰：12本" in data:
+            data = data.replace("小兰：12本","小兰：14本")
+        new_data+=data
+    print(new_data)
+with open(r"E:\text.txt","w",encoding="utf-8")as file:    
+    file.write(new_data)
\ No newline at end of file