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'
+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('小兰：12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:
+    a=file1.readline()
+    print(a)
+
+
+
+with open(r"C:\Users\123\Desktop\test.txt",'r',encoding='utf-8') as file1:
+    for i in file1:
+        if
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