diy.py
1.17 KB
# 写入同学们的捐赠明细:'小兰:12本'、'小丽:11本'、'李文:9本'、'c'
# filter=open(r'C:\Users\Administrator\Desktop\andong.txt',"w",encoding="utf-8")
# filter.write('小兰:12本\n')
# filter.write('小丽:11本\n')
# filter.write('李文:9本\n')
# filter.write('张伟: 16本\n')
# filter.close()
# filter=open(r'C:\Users\Administrator\Desktop\andong.txt',"a",encoding="utf-8")
# filter.write('小强:10本\n')
# filter.write('李明:15本\n')
# filter.close()
# with open(r'C:\Users\Administrator\Desktop\andong.txt',"r",encoding="utf-8")as filter:
# for data in filter:
# if '小强:10本\n' in data:
# print('小强数据在文中')
# if '李明:15本\n' in data:
# print('李明数据在文中')
# new_data+=data
new_data=''
with open(r'C:\Users\Administrator\Desktop\andong.txt',"r",encoding="utf-8")as filter:
for data in filter:
if '小兰:12本\n' in data:
data=data.replace('小兰:12本','小兰:14本')
new_data+=data
with open(r'C:\Users\Administrator\Desktop\andong.txt',"w",encoding="utf-8")as filter:
filter.write(new_data)