需求大概就是将b文件写入a文件，然后再把a文件去重写入c文件
不需要导入任何库
想着放假无聊玩玩看吧～方法是Low了点，代码是烂了点，但是吧
我乐意
def write():
a = open('a.txt', 'U').readlines()
b = open('b.txt', 'U').readlines()
# 要写入的文件
ofile = open('a.txt', 'w')
# 遍历读取所有文件，并写入到输出文件
for txt in a:
ofile.write(txt)
ofile.write('\n')
for txt in b:
ofile.write(txt)
ofile.write('\n')
ofile.close()
def removal():
# 将a去重后写入c
i = 0
read = "a.txt" # old
write = "c.txt" # new
lines_seen = set()
outfile = open(write, "w")
f = open(read, "r")
for line in f:
if line not in lines_seen:
i += 1
outfile.write(line)
lines_seen.add(line)
outfile.close()
f.close()
if __name__ == '__main__':
write()
removal()
有点饿了。。先吃东西了，毕竟
人生苦短
