After the sessionStorage value is changed, the value obtained by the page using window.sessionStorage.getItem() will not be updated

Solution:
First, use created to obtain window.sessionStorage.getItem("id") regularly on the page that needs an id

private created() {setInterval(() => {this.id= window.sessionStorage.getItem("id");}, 1000);}

Of course, this method is performance-intensive, and it is not recommended to use it as a last resort
Second, store the required id in vuex

@Watch("$store.state.auth.id", { deep: true, immediate: true })private getAgentInfo(newVal: any, oldVal: any)span> {console.log(newVal);console.log(oldVal);}