save project

3.py

+#filel=open(r'C:\Users\87580\Desktop\book.txt','w',encoding='utf-8')
+#filel.write('小兰:12')
+#filel.write('小丽:11')
+#filel.write('李文:9')
+#filel.write('张伟:16')
+#filel.close
+with open(r'C:\Users\87580\Desktop\book.txt','w',encoding='utf-8') as filel:
+    filel.write('小兰:12')
+    filel.write('小丽:11')
+with open(r'C:\Users\87580\Desktop\book.txt','r',encoding='utf-8') as filel:
+a=filel.read()
+print(a)
+with open(r'C:\Users\87580\Desktop\book.txt','r',encoding='utf-8') as filel:
+    b=filel.read()
+print(b)
+with open(r'C:\Users\87580\Desktop\book.txt','r',encoding='utf-8') as filel:   
+    for i in filel:
+        if '小兰:12' ==l
+            print("小强在数据库中")
+        if '小强:10' ==l
+            print("小兰在数据库中")
+        
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