save project

diy.py

@@ -4,4 +4,7 @@ filt = open(r"C:\Users\ZR\Desktop\book.txt",'a',encoding='utf-8')
 # filt.write('小丽：11本\n')
 # filt.write('小丽：11本\n')
 # filt.write('李文：9本\n')
 # filt.write('李文：9本\n')
 # filt.write('张伟：16本\n')
 # filt.write('张伟：16本\n')
- filt.close()
+filt.write('小强：12本\n')
\ No newline at end of file
+filt.close()
+with open(r"C:\Users\ZR\Desktop\book.txt",'a',encoding='utf-8')as filt:
+    filt.write('李明：15本\n')
\ No newline at end of file

try.py

+# file1=open(r"C:\Users\ZR\Desktop\test.txt",'r',encoding='utf-8')
+# a=file1.read()
+# print(a)
+# file1.close()
+
+
+
+
+# with open(r"C:\Users\ZR\Desktop\test.txt",'r',encoding='utf-8')as file1:
+#     a=file1.read()
+#     print(a)
+
+
+
+with open(r"C:\Users\ZR\Desktop\test.txt",'r',encoding='utf-8')as file1:
+    for data in file1:
+        if '小强：12本'in data:
+            print('数据在文件中')   
\ No newline at end of file