Question

我有一个python文件，我获取学生数据库的用户输入，我已将它们写为csv文件。我无法在谷歌中获取链接以读取csv输出并将这些csv输出写入文本文件。

示例Csv输出：

Name    Roll no Age Mark1   Mark2
a        1       2    3       4
g        3      54    54      3

导入csv

with open('abc.csv','r') as f:
    reader=csv.dictreader(f)
    for row in reader:
        output=('xyz.txt','r')

我知道如何阅读csv文件，但我不知道如何将这些内容写入文本文件

Answer 1

使用以下代码缩进和注释是内联的

阅读CSV文件
操纵字段
写入文件

块引用

import csv

#Open file with "w"(write), the file will create automatically.
file = open("/home/xyz/testfile.txt", "w")
#Open CSV file to read CSV, note: reading and write file should be under "with"
with open('/home/xyz/Desktop/ta_cta.csv') as csvFile:
    #Read CSV
    readCsv = csv.reader(csvFile)
    for row in readCsv:
        #Get Values and manupilate in the file.write
        Id = row[0]
        Id1 = row[1]
        #Write CSV you need format it to string if the value is an int
        file.write("UPDATE Schema.TableName SET Column1="+str(Id1)+" where Column2="+str(Id)+";\n")
#You Must Close the FIle after writing it.
file.close()

Answer 2

你应该首先学习python csv模块。

https://docs.python.org/2/library/csv.html

Answer 3

你可以试试这段代码：

import csv

output=open('xyz.txt','w')

with open('abc.csv',"rt", encoding='ascii') as f:
for row in f:
    output.write(row)

读取csv文件的输出并使用Python将其写入文本文件

3 个答案: