Python 2.7 python 2.7如何将结果写入xlsx文件

我有几句话：

ATCAAGTCCGTAGTACGGGAATGCAAAAAA gggctaggtaggattgcctagtcaactggggggg tagctagtagggattgcctagtcaactggcccgg

现在，我想在每个读写文件的左边剪切12个碱基：

f2 = open("./read1.csv","w")
with open('../001.fastq') as reader:
     for index, line in enumerate(reader):
         if index % 4 == 1:
             f2.write(line[:12]+'\n')
f2.close()

---

我想知道如何编写xlsx文件

每个读取有4行

@

ATCAAGTCCGTAGTACGGGAATGCAAAAAA

+

JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ

@

gggctaggtaggattgcctagtcaactggggggg

+

JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ

@

tagctagtagggattgcctagtcaactggcccgg

+

JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ

对于本例，输出为：

ATCAAGTCCG

gggctagtagg

---

tagctaggg

假设您在Windows上并安装了Excel。 有多个库可以从python中使用Excel。除此之外，我只使用了

win32com.client

，但我对它非常满意。我认为默认情况下，它与anaconda一起提供，但是如果没有，那么您可以从这里下载它：（不要忘记选择合适的版本/架构）。 以下是最重要功能的小参考：

from win32com.client import Dispatch  # import the necessary library

xlApp = Dispatch("Excel.Application") # starts excel
xlApp.Visible = False                 # hides window (this makes things a bit faster)
xlBook = xlApp.Workbooks.Open( fullPathToXlsx ) # opens an existing workbook

xlSheet = xlBook.Sheets(3)            # which sheet you want to use, indexing starts from 1!
print [sheet.Name for sheet in xlBook.Sheets] # if it is not the one you want you can see their order this way
xlSheet = xlBook.Sheets(sheetName)    # or you can use its name

xlSheet.Cells(row, col).Value = newValue # newValue is what you want to assign to the cell, row and col indexing starts from 1

xlApp.DisplayAlerts = False           # turns off any affirmation popup
xlBook.Save()                         # saving workbook
xlBook.SaveAs(newFullPath)            # saving as...

xlBook.Close()                        # close workbook
xlApp.Quit()                          # exit application

您可能希望在列/行索引和“字母表示法”之间进行转换（我指的是左上角单元格的“A1”，以此类推）。以下是我用过的：

def cellStringToNum(aStr):
    """
    returns an excel sheet cell reference as numbers in a list as [col, row]
    """
    import string

    colS = ""
    for i in xrange(len(aStr)):
        if aStr[i] in string.ascii_uppercase:
            colS += aStr[i]
        else:
            row = int(aStr[i:])
            break
    col = 0
    for i in xrange(len(colS)):
        col += (string.ascii_uppercase.find(colS[len(colS)-1-i])+1)*(26**i)
    return [col, row]

def cellNumToString(col, row):
    import string

    colS = string.ascii_uppercase[col % 26 - 1]
    if col % 26 == 0:
        col -= 26
    else:
        col -= col % 26
    while col != 0:
        col /= 26
        colS = string.ascii_uppercase[col % 26 - 1] + colS
        if col % 26 == 0:
            col -= 26
        else:
            col -= col % 26
    return colS+str(row)

编辑

---

但是这个问题已经在这里得到了回答：

你能显示你想要的输出吗？结果是：atcaaagtccg GGGCTAGGTAGG tagctagtaggar你想问一个XSLX或CSV文件吗？代码是写一个CSV文件，但我想保存xlsx文件，我不知道如何修改它。请按照指南编辑你的原始问题（并删除此答案）。这些额外的“帖子”仅用于回答（评论要求澄清，添加一些补充或非必要信息和类似内容）虽然原始问题是唯一一个与之相关的地方。我知道它可能会让人有点困惑。顺便说一句，欢迎来到stackoverflow。