首先，去PhantomJS官网下载对应平台的版本，或者下载源代码自行编译。然后将PhantomJS配置进环境变量，输入

$ phantomjs

如果有反应，那么就可以进行下一步了。

利用PhantomJS进行简单截图

var postMan = {
postPage: null,
posting: false,
datas: [],
len: 0,
currentNum: 0,
init: function (snapshot) {
var postPage = webpage.create();
postPage.customHeaders = {
'secret': pkg.secret
};
postPage.open('http://localhost:' + pkg.port + '/bridge?campaignId=' + campaignId, function () {
var urls = JSON.parse(postPage.plainText).urls
, url;

this.len = urls.length;

if (this.len) {
for (var i = this.len; i--;) {
url = urls[i];
snapshot(url.id, url.url, url.imagePath);
}
}
});
this.postPage = postPage;
},
post: function (data) {
this.datas.push(data);
if (!this.posting) {
this.posting = true;
this.fire();
}
},
fire: function () {
if (this.datas.length) {
var data = this.datas.shift()
, that = this;
this.postPage.open('http://localhost:' + pkg.port + '/bridge', 'POST', data, function () {
that.fire();
// kill child process
setTimeout(function () {
if (++this.currentNum === this.len) {
that.postPage.close();
phantom.exit();
}
}, 500);
});
} else {
this.posting = false;
}
}
};
postMan.init(snapshot);