需求
賬號密碼驗證碼三項均為必填币喧，按鈕可點擊，否則按鈕禁用狀態(tài)
效果
代碼
js代碼
computed: {
isLogin() {
let boo = true
if(this.query.user_name && this.query.pwd && this.query.code) {
boo = false
}
return boo
}
}
html代碼
<van-button :disabled="isLogin" size="large" @click="verification" :loading="loginLoading" loading-text="登錄中..." type="primary" block>登錄</van-button>
