plus.net.XMLHttpRequest（）post

xhr.send(“dataA=11”);可以执行，但是xhr.send(data);却不行

var xhr = null;  

                function testXHR() {  
                    if (xhr) {  
                        return;  
                    }  
                    xhr = new plus.net.XMLHttpRequest();  
                    xhr.onreadystatechange = xhrStatechange;  

                    var data = {  
                        dataA: "11"  
                    };  

                    xhr.open("POST", "http://www.yohaschool.com/dan/dan.ashx");  
                    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");  

                    xhr.send(“dataA=11”);  
//xhr.send(data);这个不行，怎么弄  
                }  

                function xhrStatechange() {  
                    alert("xhr请求成功：" + xhr.responseText);  
                    switch (xhr.readyState) {  
                        case 0:  
                            console.log("xhr请求已初始化");  
                            break;  
                        case 1:  
                            console.log("xhr请求已打开");  
                            break;  
                        case 2:  
                            console.log("xhr请求已发送");  
                            break;  
                        case 3:  
                            console.log("xhr请求已响应");  
                            break;  
                        case 4:  
                            if (xhr.status == 200) {  
                                alert("xhr请求成功：" + xhr.responseText);  

                            } else {  
                                console.log("xhr请求失败：" + xhr.readyState);  
                            }  
                            break;  
                        default:  
                            alert("xhr请求成功：" + xhr.responseText);  
                            break;  
                    }  
                }