document.write((new Boolean())+"<br />");
document.write((new Boolean(""))+"<br />");
document.write((new Boolean(0))+"<br />");
document.write((new Boolean(-0))+"<br />");
document.write((new Boolean(null))+"<br />");
document.write((new Boolean(undefined))+"<br />");
document.write((new Boolean(false))+"<br />");
document.write((new Boolean(NaN))+"<br />");
时间: 2024-10-20 11:19:45