我想到了。基本上，这是一个异步问题。您不能只是提交并期望立即呈现下一页。您必须等到触发下一页的onLoad事件。我的代码如下：
var page = new WebPage(), testindex = 0, loadInProgress = false;page.onConsoleMessage = function(msg) { console.log(msg);};page.onLoadStarted = function() { loadInProgress = true; console.log("load started");};page.onLoadFinished = function() { loadInProgress = false; console.log("load finished");};var steps = [ function() { //Load Login Page page.open("https://website.com/theformpage/"); }, function() { //Enter Credentials page.evaluate(function() { var arr = document.getElementsByClassName("login-form"); var i; for (i=0; i < arr.length; i++) { if (arr[i].getAttribute('method') == "POST") { arr[i].elements["email"].value="mylogin"; arr[i].elements["password"].value="mypassword"; return; } } }); }, function() { //Login page.evaluate(function() { var arr = document.getElementsByClassName("login-form"); var i; for (i=0; i < arr.length; i++) { if (arr[i].getAttribute('method') == "POST") { arr[i].submit(); return; } } }); }, function() { // Output content of page to stdout after form has been submitted page.evaluate(function() { console.log(document.querySelectorAll('html')[0].outerHTML); }); }];interval = setInterval(function() { if (!loadInProgress && typeof steps[testindex] == "function") { console.log("step " + (testindex + 1)); steps[testindex](); testindex++; } if (typeof steps[testindex] != "function") { console.log("test complete!"); phantom.exit(); }}, 50);
