一个打印预览类,功能还比较全面,是作为自己写的一个很好的示例,里面全中文说明!~-A Print Preview Class features a more comprehensive and is written as a good example, which the entire Chinese Help! ~

可以实现表格的打印,并且可以根据字符的宽度自动换行-Forms printing can be achieved, and the width of the characters can wrap