var page = require('webpage').create(),

system = require('system'),
t, url, path;

var fs = require('fs'); if (system.args.length === 2) {

console.log('params error');
phantom.exit();

}

t = Date.now(); url = system.args; path = system.args;

page.open(url, function (status) {

if(path.indexOf(".html") != -1){
    fs.write(path, page.content, 'w');
}else if(path.indexOf(".png") != -1){
    page.render(path); //生成图片
}else{
    console.log("error-->");
}
phantom.exit();

});