Python文件拷贝函数

test.txt文件内容如下：

one
two
three
four
five

代码的功能为把test.txt内容拷贝到copy.txt文件中

代码如下：

def main():
    infile = open("test.txt", "r")
    outfile = open("copy.txt", "w")
    countLines = countChars = 0
    for line in infile:
        countLines += 1
        countChars += len(line)
        outfile.write(line)
    print(countLines, "lines and", countChars, "chars copied")

    infile.close()
    outfile.close()

main()