JavaScript zebra spreadsheets

//实现斑马线表格

//方法1:
document.write('<table border="1">');

for(var i=1; i<11; i++){
    
    if(i % 2 ==0){
        document.write('<tr style="background-color:blue;color:#fff;">');
    }else{
        document.write('<tr style="background-color:yellow;color:green;">');
    }
    
    for(var j=1; j<8; j++){
        document.write('<td>单元格' + j + '</td>');
    }
    document.write('</tr>');
}

document.write('</table>');


//方法2:
var tableWp = '<table border="1">';

for(var i=0; i<10; i++){
    
    if(i % 2 != 0){
        tableWp += '<tr style="background-color:red;color:blue;">';
    }else{
        tableWp += '<tr style="background-color:blue;color:yellow">';
    }
    
    for(var j=0; j<7; j++){
        tableWp += '<td>单元格' + j + '</td>';
    }
    
    tableWp += '</tr>';
}

tableWp += '</table>';
document.write(tableWp);