diy.py
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# 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'
# File = open(r'C:\Users\丽达1号\Desktop\A.txt',"w",encoding='utf-8')
# File.write('')
# File.write('')
# File.close()
# with open(r'C:\Users\丽达1号\Desktop\A.txt',"a",encoding='utf-8')as File:
# File.write('小强:12本\n')
# File.write('李明:15本\n')
with open(r'C:\Users\丽达1号\Desktop\A.txt',"r",encoding='utf-8')as File:
for i in File:
if '小强:10本' in i:
print('在')
if '小兰:10本' in i:
print('在')