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'
+#file=open(r"C:\Users\LENOVO\Desktop\新建文件夹\1\test.txt",'w',encoding='utf-8')
+#file.write('小兰：12本\n''小丽：11本''李文：9本''张伟：16本')
+#file.close()
+new_data=""
+with open(r"C:\Users\LENOVO\Desktop\新建文件夹\1\test.txt",'r',encoding='utf-8') as file:
+    for data in file:
+        if '小丽：11本' in data:
+            data=data.replace('小丽：11本','小丽：20本')
+        new_data+=data
+with open(r"C:\Users\LENOVO\Desktop\新建文件夹\1\test.txt",'w',encoding='utf-8') as file:
+    file.write(new_data)
+with open(r"C:\Users\LENOVO\Desktop\新建文件夹\1\test.txt",'r',encoding='utf-8') as file:
+    a=file.read()
+    print(a)
\ No newline at end of file