直接以txt的文本?io讀取?也就是streamwriter?直接寫進去?壹個逗號是壹個單元格，文件名後綴csv
using?System.IO;namespace?ConsoleApp12
{
class?Program
{
static?void?Main(string[]?args)
{
using?(StreamWriter?sw?=?new?StreamWriter("1.csv"))
{
sw.WriteLine("列1,列2,列3,列4,列5,列6,列7");?//壹個逗號為壹列
}
}
}
}