+ (void)drawRect:(CGRect)rect {it
CGContextRef context = UIGraphicsGetCurrentContext();co
CGContextSetFillColorWithColor(context, [UIColor clearColor].CGColor);context
CGContextFillRect(context, rect);void
//可修改顏色 顏色
CGContextSetStrokeColorWithColor(context, [UIColor colorWithRed:198/255.0 green:198/255.0 blue:198/255.0 alpha:1].CGColor);
CGContextStrokeRect(context, CGRectMake(0, rect.size.height, rect.size.width, 1));
}