错误：在vue中使用typescript的时候报错“Unexpected token. A constructor, method, accessor or property was expected

demo

<script lang="ts">
import { Component, Vue } from 'vue-property-decorator'
import HelloWorld from '@/components/HelloWorld.vue' // @ is an alias to /src

@Component({
  components: {
    HelloWorld
  },
  props: ['name'],
  computed: {},
  watch: {},
  mounted () {},
  created () {}
})
export default class Home extends Vue {
  // data
  a:number = 1;
  b: string = '我是字符串';
  c: boolean = true;
  d:object = {
    a: '你好',
    b: '77'
  }
  // methods
  function myClick () :void {
    alert('89089')
  }
}
</script>

原因
在typescript中定义一个类的时候，不能使用let const var来声明成员变量;在其内部，也禁止使用function关键字来声明类中的方法，上面报错去掉方法myClick前面的function关键字就好了

参考

示例

错误

export class AppComponent {

  a: string = "foo";
  b: string = "bar";


  foo(): void { }

  constructor(){
  }

}

正确

export class AppComponent {

  var a: string = "foo";
  let b: string = "bar";


  function foo(): void { }

  constructor(){
  }

}