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\丽达玛酷8号\Documents\lesson12-1\diy.txt",'c',encoding ='utf-8')
+# file.write('小兰：12本/n')
+# file.close('小丽:11本、/n')
+# file.write()
+
+with open(r"C:\Users\丽达玛酷8号\Documents\lesson12-1\diy.txt",'c',encoding ='utf-8') as file:
+    file.write('小强:9本/n')
+    file.write('李文')
+    '''
+wint open(r"C:\Users\丽达玛酷8号\Documents\lesson12-1\diy.txt",'r',encoding ='utf-8')
+    a=file.read()
+    for data in a:
+        if "小强：10本" in data:
+            print("小强在")
+        print:
+            print("小强不在")
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diy.txt

+小兰：12本
\ No newline at end of file