我试图将每行中的日期格式从逗号改为连字符。分隔月日的日期和年份的逗号索引是不同的。C#用逗号替换两个特定逗号的字符串
lines_in_List[i] = lines_in_List[i].Insert(0, cnt + ","); // Insert Draw # in 1st column
string one_line = lines_in_List[i];
// 0,5,1,2012,1,10,19,16,6,36,,,
// 1,11,5,2012,49,35,23,37,38,28,,,
// 2,12,10,2012,8,52,53,54,47,15,,,
// ^-^--^ replace the ',' with a '-'.
StringBuilder changed = new StringBuilder(one_line);
changed[3] = '-';
changed[5] = '-';
changed[3] = '-';
lines_in_List[i] = changed.ToString();
}
*逗号分隔的日期和年份的日期和年份变化* ...根据** w帽子**? –
@EricJ。无论月/日是一位还是两位 – Servy
COnsider分割(',')并从分析的字段构建日期。 – kenny