Commit bf90d080 by BellCodeEditor

save project

parent 2f654fc2
Showing with 8 additions and 13 deletions
# 补充捐赠明细,两种写法: # 完成修改数据前的遍历和条件判断,找下'小强:10本'在不在数据中,以及小兰的数据'小兰:12本'在不在
with open(r'C:\Users\CM\Desktop\book.txt','r',encoding='utf-8') as file1:
# 补充数据的第一种写法: for data in file1:
file= open(r'C:\Users\CM\Desktop\book.txt','a',encoding='utf-8') if '小强:10本' in data:
file.write('小强:10本\n') print('小强数据在文件中')
file.write('李明:15本\n') if '小兰:12本'in data:
file.close() print('小兰数据在文件中')
\ No newline at end of file
# 补充数据的第二种写法:
with open(r'C:\Users\CM\Desktop\book.txt','a',encoding='utf-8') as file:
file.write('小强:10本\n')
file.write('李明:15本\n')
\ No newline at end of file
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