save project

22.py

+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8') as file:
+    file.write('小强：10\n')
+    file.write('小王：22\n')
+    file.write('小兰：19\n')
+    file.write('小哥：999\n')
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file1:
+    for data in file1:
+        if  '小兰：19' in data:
+            print('小兰在数据中')
+        if  '小强：10' in data:
+            print('小强在数据中')
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