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'
+file1=open(r"C:\Users\123\Desktop\test.txt",'w',encoding='utf-8')
+file1.write("李文：99本\n")
+file1.write('小丽：11本\n')
+file1.write('小兰：12本\n')
+file1.write('老强：10本\n')
+file1.write('张伟：16本\n')
+file1.close()
+
+
+# with open(r"C:\Users\123\Desktop\test.txt",'r',encoding='utf-8') as file1:
+#     for i in file1:
+#         if'pig:10'in i:
+#             print('在里面')
+#         if'big:10'in i:
+#             print('在里面')
+
+
+new_data=''
+with open(r"C:\Users\123\Desktop\test.txt",'r',encoding='utf-8') as file1:
+    for data in file1:
+        if'老强：10本'in data:
+            data=data.replace('老强：10本','光头强：10本')
+        new_data+=data
+
+
+with open(r"C:\Users\123\Desktop\test.txt",'w',encoding='utf-8') as file1:
+    file1.write(new_data)
\ No newline at end of file