Calculate a CSS style code. It must be the label style of the table to display a color for the odd row of the table label. The even row shows another color.

Reprinted: http://zhidao.baidu.com/question/255951942.html

 <!  Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"  > 
 <  Html  Xmlns  = "Http://www.w3.org/1999/xhtml"  > 
 <  Title  > Test </  Title > 
 <  Style  Type  = "Text/CSS"  >  
Tr
  {  
Background  :  # Ff3  ;  
 }  
TR: Nth-child (2n)
  {  
Background  :  #6f9  ;   
  }  
Tr
  { 
Background-color  :  Expression (this. sectionrowindex % 2 = 0 )? "# Ff3": "#6f9 ")  ;  
  }  

  </  Style  > 
 </  Head > 
 <  Body  > 
 <  Table  > 
 <  Tr  > <  TD  > This is an odd number of rows </  TD  > </  Tr > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an odd number of rows</  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
 <  Tr > <  TD  > This is an odd number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </ Tr  > 
 <  Tr  > <  TD  > This is an odd number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an odd number of rows </  TD  > </  Tr  > 
 < Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an odd number of rows </  TD > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD > This is an odd number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD  > </  Tr  > 
<  Tr  > <  TD  > This is an odd number of rows </  TD  > </  Tr  > 
 <  Tr  > <  TD  > This is an even number of rows </  TD > </  Tr  > 
 </  Table  > 
 </  Body  > 
 </  Html  > 

 

Test

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows

This is an odd number of rows

This is an even number of rows