input[type='checkbox']{
background:url("../../assets/imgs/iInsure/signTab.png")no-repeat center center;
background-size:1rem 1rem;
}
input[type='checkbox']:checked{
background:url("../../assets/imgs/addCustomer/finish.png")no-repeat center center;
background-size:1rem 1rem;
}
图片路径自定义,会根据选中状态自己切换