我正在尝试从cvs文件中读取并将输出写入txt文档:
import csv
reader = csv.reader(open('C:\Python33\excel.csv', newline=''), delimiter=' ', quotechar='|')
text_file = open("C:\Python33\output.txt", "w")
c = ", "
for row in reader:
text_file.write(', '.join(row))
text_file.write(c)
#reader.close()
text_file.close()
当前输出如下:
current: `beef, chicken, corn, cheese, yogurt, hippo,`
desired: `beef, chicken, corn, cheese, yogurt, hippo`
我想删除列表末尾的逗号,我想要一个if语句来检查我是否在列表的末尾?但我不太清楚该怎么做。
答案 0 :(得分:0)
你必须Remove the text_file.write(c) line.
这只会引起额外的逗号。
答案 1 :(得分:0)
将所有行存储在列表中,然后将它们与join
连接在一起。
import csv
reader = csv.reader(open('C:\Python33\excel.csv', newline=''), delimiter=' ', quotechar='|')
text_file = open("output.txt", "w")
lines = []
for row in reader:
lines.append(', '.join(row))
output = ", ".join(lines)
print(output)
结果:
beef, chicken, corn, cheese, yogurt, hippo