如何打开一个输入文件，编辑它，然后用 python 用不同的名字保存它

Question

我想打开一个名为 file1.txt 的文本文件，计算长度，然后用名称 file2.txt 关闭它。

我非常喜欢不导入任何东西。

file1 = open('file1.txt')
def wordCount(file1):
    contents = file1.read()
    file1.close()
    print(contents)
    return len(contents)
print(wordCount(file1))

它应该会出现，但我不知道该过程的下一步从哪里开始。

Answer 1

# Copying then editing files
local_saved = []
with open("file1.txt", "r") as f:
    local_saved.append(f.read())

with open("file2.txt", "w+") as f:
    text_to_write = local_saved[0]
    # Edit text_to_write below. 
    # Can be deleted (text_to_write = "") or changed in any way as if it were a normal string.
    # ...

    f.write(text_to_write)

Answer 2

这里是：

    file1 = open('file1.txt')
    def wordCount(file1):
        contents = file1.read()
        file2=open('file2.txt','w')
        file2.write(contents)
        file2.close()
        file1.close()
        print(contents)
        return len(contents)
    print(wordCount(file1))