text: /**let stackItem = {
    vm: null,
    mask: null,
    config: null,
  };*/
  //context里面的stack保存了多个stackItem
  export const context = {
    zIndex: 2000,
    lockCount: 0,//点击次数
    stack: [],
    find(vm) {
      return this.stack.find((item) => item.vm === vm);
    },
  };
  