system (using LibreOffice,) I was only presented with a solid line, varying from thin to thick; no dotted...xlwt.Borders.DASHED
DASHED虚线
NO_LINE没有
THIN实线
# May be: NO_LINE, THIN, MEDIUM, DASHED, DOTTED..., THICK, DOUBLE, HAIR, MEDIUM_DASHED, THIN_DASH_DOTTED, MEDIUM_DASH_DOTTED, THIN_DASH_DOT_DOTTED, MEDIUM_DASH_DOT_DOTTED..., SLANTED_MEDIUM_DASH_DOTTED, or 0x00 through 0x0D.
borders.right = xlwt.Borders.DASHED
borders.top =