本地存储（2）：sessionStorage存储/取数据、localStorage中存储/取数据

data(){

    cms:{
         "R1":"HTTP!",
         "R2":"222",
         "R3":"333",
     }
    OBJ:'123654789564';

}
//在data中定义的对象存储到sessionStorage中时 要将其转换成JSON形式
window.sessionStorage.setItem('CMS',JSON.stringify(this.cms));
               
//console.log(window.localStorage.getItem('CMS'))直接取值是错误的，取出来为null
//取存储的json形式的数据时转换成对象
console.log(JSON.parse(window.sessionStorage.getItem('CMS')));
 
//在data中定义的变量存储到sessionStorage       
window.sessionStorage.setItem('OBJ',this.obj);
console.log(window.sessionStorage.getItem('OBJ'));//可直接取值

//直接存储变量
window.sessionStorage.setItem('ABC','你好啊');
console.log(window.sessionStorage.getItem('ABC'));


//localStorage同理