Commit 055f1f4a by BellCodeEditor

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parent 7e3a2ff3
Showing with 27 additions and 0 deletions
# 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'
# with open("test.txt", 'w', encoding='utf-8') as f1:
# f1.write("小兰:12本\n")
# f1.write("小丽:11本\n")
# f1.write("李文:9本\n")
# f1.write("张伟:16本\n")
# with open("test.txt", 'a', encoding='utf-8') as f2:
# f2.write("小黄:20本\n")
with open("test.txt", 'r', encoding='utf-8') as f3:
new_data = ""
for data in f3:
if "小兰:12本" in data:
new_data = new_data + "小兰:30本\n"
else:
new_data = new_data + data
print(new_data)
with open("test.txt", 'w', encoding='utf-8') as f4:
f4.write(new_data)
\ No newline at end of file
小兰:30本
小丽:11本
李文:9本
张伟:16本
小黄:20本
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