neo_yoho进来

Question

document.getElementById("guess").rows[0].cells[cellIndex].style.fontSize="30px";

Answer 1

function setTable(cellIndex,str)
{
    document.getElementById("guess").rows[0].cells[cellIndex].innerHTML = str;
    document.getElementById("guess").rows[0].cells[cellIndex].style.color="red";
    document.getElementById("guess").rows[0].cells[cellIndex].style.fontSize="20px"; 
}

Answer 2

function setTable(cellIndex,str)
{
    document.getElementById("guess").rows[0].cells[cellIndex].innerHTML = str;
    document.getElementById("guess").rows[0].cells[cellIndex].style.color="red";
    document.getElementById("guess").rows[0].cells[cellIndex].style.fontSize="20px"; 
    document.getElementById("guess").rows[0].cells[cellIndex].style.fontFamily='宋体'; 
}
还可以定义字体

Answer 3

document.getElementById("guess").rows[0].cells[cellIndex].style.fontSize="14px";