html:
??<button?bindtap="ci_dao"?disabled="{{disabled}}">{{dao}}</button>? 需要用button標(biāo)簽，設(shè)置不可點擊
data中定義：
dao:?"倒計時",? ? disabled:?false,
js:
//倒計時?
??ci_dao:?function?()?{
????var?num?=?60;
????var?that?=?this;
????that.setData({
??????dao:?num?+?"倒計時了",
??????disabled:?true
????});
????var?interval?=?setInterval(function?()?{
??????num?=?num?-?1;
??????console.log(num)
??????if?(num?>?0)?{
????????that.setData({
??????????dao:?num?+?"倒計時了"
????????});
??????}?else?{
????????clearInterval(interval)
????????that.setData({
??????????dao:?"重新獲取",
??????????disabled:?false
????????});
????????num?=?60;
??????}
????},?1000);
??}
