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"C:\YTZ\test.txt","w",encoding="utf-8")
+file1.write('小兰：12本\n')
+file1.write('小丽：11本\n')
+file1.write('李文：9本\n')
+file1.write('张伟：16本\n')
+file1.close()
+
+with open(r"C:\YTZ\test.txt","a",encoding="utf-8") as file1:
+    file1.write("李强：16本\n")
+
+with open(r"C:\YTZ\test.txt","a",encoding="utf-8") as file1:
+    file1.write("小丽：11本")
+ 
+with open(r"C:\YTZ\test.txt","r",encoding="utf-8") as file1:
+    for data in file1:
+        if "小丽：11本" in data:
+            print("在数据中")
\ No newline at end of file