n.定界符;分隔符
The row delimiter is always the line break and cannot be chosen freely. 行定界符總是換行符,不能自由選擇。
The delimiter is usually a comma. 分隔符通常是一個逗號。
If no semicolon is present, a period is the field delimiter. 如果沒有分號,則使用句號作為字段分隔符。