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Untitled-1.py.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'
+# 1、  路径 C:\Users\86166\Desktop\test.txt
+# file = open(r'C:\Users\86166\Desktop\test.txt','w',encoding='utf-8')
+# file.write('小兰：12本\n')
+# file.write('小丽：11本\n')
+# file.write('李文：9本\n')
+# file.write('张伟：16本\n')
+# file.close()
+# 2、追加
+# file1 = open(r'C:\Users\86166\Desktop\test.txt','w',encoding='utf-8')
+# file1.write('小强：10本\n')
+# file1.write('李明：15本\n')
+# file1.close()
+# 3、with用法
+# with open(r'C:\Users\86166\Desktop\test.txt','a',encoding='utf-8') as file1:
+#     file1.write('小强：12本\n')
+#     file1.write('李明：15本\n')
+# 4、读取文件
+# with open(r'C:\Users\86166\Desktop\test.txt','r',encoding='utf-8') as file1:
+#     a = file1.read()
+#     print(a)
+with open(r'C:\Users\86166\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')
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