auto save

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\Makcoo-Bellcode\Desktop\book.txt','a', encoding='utf-8')
+#file.write('小丽：12本')
+#file.write('李文：12本')
+#file.write('张伟：12本')
+#file.write('任科洁:13本')
+#file.write('李明：12本')
+#file.close()
+with open(r'C:\Users\Makcoo-Bellcode\Desktop\book.txt','a', encoding='utf-8') as file:
+    file.write('任科洁:13本')
+    file.write('李明：12本')
+with open(r'C:\Users\Makcoo-Bellcode\Desktop\book.txt','r', encoding='utf-8') as file:
+    for data in file:
+        if '任科洁:13本'in data:
+            print('数据在文件中 ')
+           
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