// 配置
const Core = require('@alicloud/pop-core');
var client = new Core({
    accessKeyId: '****',   // id
    accessKeySecret: '***',   // 密钥
    endpoint: 'https://dysmsapi.aliyuncs.com',
    apiVersion: '2017-05-25'
});

// 用户模板信息
 var params = {
        "RegionId": "cn-hangzhou",
        "PhoneNumbers": emailNum, //电话号码
        "SignName": "***",   //名片
        "TemplateCode": "***",  //模板id
        "TemplateParam": "{\"code\":\"" + randomNum + "\"}" //验证码 randomNum是个变量
}
// 发送
var requestOption = {
    method: 'POST'
};
client.request('SendSms', params, requestOption).then((result) => {
  console.log(request);  //成功
}, (ex) => {
    console.log(ex);   //失败
})