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'/Users/xujunheng/Desktop/test.txt','a',encoding='utf-8')
-file1.write('小兰，12本\n')
-file1.write('小明，20本\n')
-file1.write('小刚，19本\n')
+file1=open(r'/Users/xujunheng/Desktop/test.txt','r',encoding='utf-8')
+a=file1.read()
+print(a)
 file1.close()
-with open(r'/Users/xujunheng/Desktop/test.txt','a',encoding='utf-8') as file1:
-    file1.write('小k，19本\n')
\ No newline at end of file
+with open(r'/Users/xujunheng/Desktop/test.txt','r',encoding='utf-8') as file1:
+    for a in file1:
+        if "小红，19本" in a:
+            print("数据在文件夹中")
\ No newline at end of file