HarmonyOS 一个非系统app，要怎么实现发短信（跳转到短信）

参考示例如下：

Button("跳转到短信").onClick((event: ClickEvent) => {
  let context = getContext(this) as common.UIAbilityContext;

  class info {
    contactName: string
    telephone: string

    constructor() {
      this.contactName = "刚跑"
      this.telephone = '123'
    }
  }

  // class want
  let contactInfo: Array<Object> = new Array()
  contactInfo[0] = new info();
  let want: Want = {
    bundleName: 'com.ohos.mms',
    abilityName: 'com.ohos.mms.MainAbility',
    parameters: {
      contactObjects: JSON.stringify(contactInfo),
      content: "内容",
      pageFlag: 'conversation'
    }
  };
  context.startAbility(want)
    .then(() => {
    })
    .catch((err: BusinessError) => {
      console.error(`Failed to startAbility. Code: ${err.code}, message: ${err.message}`);
    });
}).margin(10)