本文共 279 字，大约阅读时间需要 1 分钟。

直接上代码：

l=["A","B","C","D"]f=open("k1.txt","w")f.writelines(l)f.close()# 输出样式：ABCDl=["A","B","C","D",1,2,3]f=open("k2.txt","w")f.write(str(l))f.close()# 输出样式：['A', 'B', 'C', 'D', 1, 2, 3]l=["A","B","C","D"]str = '\n'f=open("k3.txt","w")f.write(str.join(l))f.close()'''输出样式：ABCD'''

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