legend2---开发常用语句

legend2---开发常用语句

一、总结

一句话总结：

其实敲代码都是很类似的，比如ajax，模型等等，敲代码就是一个由生到熟的过程

1、ajax？

$.post("{:url('broadcast.index/require_broadcast')}", {need_money: need_money} ,function (data) {

页面

 <script>
     function require_broadcast(){
         $.post("{:url('broadcast.index/require_broadcast')}", {need_money: need_money} ,function (data) {
             //console.log(data);
             if(parseInt(data.operation_num)==4){
                 main_content.touben_heroes=data.touben_heroes;
                 //console.log(data);
                 //更新school
                 f_mian_header.school=data.school;
                 main_content.school_time=data.school_time;
                 console.log(main_content.school_time);
             }else{
                 if(parseInt(data.operation_num)==3) alert('支付失败');
                 if(parseInt(data.operation_num)==2) alert('服务器错误');
                 if(parseInt(data.operation_num)==1) alert('连接成功');
                 if(parseInt(data.operation_num)==0) alert('连接失败');
                 if(parseInt(data.operation_num)==0) alert('免费刷新条件不满足');

             }
         });
     }
 </script>

控制器

     public function require_broadcast(){
         $back_data=[];
         $back_data['operation_num']=0;//表示连接失败
         if(request()->isAjax()){
             $back_data['operation_num']=1;//表示连接成功

             //die;
             return $back_data;
         }
         return $back_data;
     }

2、事务处理？

Db::startTrans();

Db::commit();

Db::rollback();

 //19、测试事务操作
 public function test18(){
     Db::startTrans();
     $ans1=db('myself_goods')->delete(6);
     $ans2=db('myself_goods')->delete(5);
     if($ans1&&$ans2){
         // 提交事务
         dump('commit');
         Db::commit();
     }else{
         // 回滚事务
         Db::rollback();
         dump('rollback');
     }
 }

 //18、测试事务操作
 public function test17(){
     // 启动事务
     Db::startTrans();
     try{
         $ans1=db('myself_goods')->delete(6);
         $ans2=db('myself_goods')->delete(7);
         dump('$ans1:  '.$ans1);
         dump('$ans2:  '.$ans2);
         // 提交事务
         dump('commit');
         Db::commit();
     } catch (\Exception $e) {
         // 回滚事务
         Db::rollback();
         dump('rollback');
     }
 }

3、页面重新加载？

location.reload();

location.reload();

4、if语句的简约代码写法？

用数组

     //将英雄的灵根数字字符串转化为汉子数组
     public static function reikiRootNormalize($reikiRoot){
         $reiki=['金','木','水','火','土','风','冰','雷','光','暗'];
         $reikiRoot=explode(',',$reikiRoot);
         foreach ($reikiRoot as $key => &$val){
             $val=$reiki[intval($val)-1];
         }
         return $reikiRoot;
     }

还有比如判断等级的

 //计算英雄境界
 function calcHeroGrade($grade){
     $gradeLevel=["练气","筑基","金丹","元婴","出窍","化神","练虚","合体","大乘","渡劫","仙人"];
     $gradeSmallLevel=["前期","前期","前期","中期","中期","中期","后期","后期","后期","巅峰"];
     $level='';
     $level.=$gradeLevel[intval($grade/10)];
     $level.=$gradeSmallLevel[intval($grade%10)];
     return $level;
 }

比如判断升级灵力的

     //$reikiGrowth：表示灵气成长
     public static function getGradeReiki($grade,$reikiGrowth){
         //dump($reikiGrowth);die;
         $rate=[1.02,1.06,1.12,1.03,1.07,1.13,1.04,1.08,1.14,1.3];
         $num=100*$reikiGrowth/1000;
         $sum=0;
         for($i=0;$i<$grade;$i++){
             $sum+=$num;
             $num*=$rate[($i+10)%10];
         }
         $sum+=$num;
         $ans=[];
         $ans['num']=intval($num);//$grade哪一级的升级经验
         $ans['sum']=intval($sum);//$grade那一级的总经验
         return $ans;
     }

5、文字存进数据库转码和解码？

转码：addslashes(htmlspecialchars($data['a_content_art1']));

解码：stripslashes(htmlspecialchars_decode($article['a_content_art1']));

转码

$data['a_content_art1']=addslashes(htmlspecialchars($data['a_content_art1']));

解码（这个不行，要一一对应）

$article['a_content_art1']=stripslashes(htmlspecialchars_decode(stripslashes($article['a_content_art1'])));

这个

$val['bq_stem_info']=stripslashes(htmlspecialchars_decode($val['bq_stem_info']));

6、正则查找和正则替换？

查找：preg_match_all($pattern, $question['bq_answer'], $keywords);

替换：preg_replace($pattern,'', $question['bq_answer_clue']);

查找

$pattern='/<h5\s*?.*?>(.*?)<\/h5>/us';
preg_match_all($pattern, $question['bq_answer'], $keywords);
if(isset($keywords[1][0])){

替换

//2.2 确定答案对应的线索：去掉关键词
$pattern='/<h5\s*?.*?>(.*?)<\/h5>/us';
$question['bq_answer_clue']=preg_replace($pattern,'', $question['bq_answer_clue']);

7、返回ajax模板？

$back_data=[];

$back_data['operation_num']=0;

//3、鉴定装备
    public function identify_equipment(){
        $back_data=[];
        $back_data['operation_num']=0;//表示连接失败
　　　$back_data['operation_num_info']='';//表示返回信息　
        if(request()->isAjax()){
            $back_data['operation_num']=1;//表示连接成功
            $e_id=input('e_id');//装备id
            //dump($e_id);
            $h_id=input('h_id');//英雄id
            if(!intval($e_id)||!intval($e_id)){
                $back_data['operation_num']=6;//没有可鉴定装备或没有可鉴定装备英雄
                return $back_data;
            }

            Db::startTrans();
            //1、支付灵石
            $equipment=db('equipment')->alias('e')->join('school_equipment se','se.se_e_id=e.e_id','LEFT')->
            join('template_equipment te','e.e_te_id=te.te_id','LEFT')->find($e_id);
            //dump($equipment);die;
            if(!isset($equipment['e_sold_price'])||!isset($equipment['se_num'])||$equipment['se_num']<1){
                $back_data['operation_num']=7;//装备数量不够
                return $back_data;
            }
            $need_money_num=intval($equipment['e_sold_price']/2);
            if($need_money_num<25) $need_money_num=25;
            if(!\app\index\model\money\pay\AutoPay::pay($need_money_num)){
                $back_data['operation_num']=3;//支付失败
                return $back_data;
            }

            //2、支付活力
            $base_exp=\app\index\model\upgrade\GetGradeReiki::getGradeReiki($equipment['te_limit_grade'])['sum'];
            $need_vigour_num=intval($base_exp*$equipment['e_type_grade']*30/100/3);
            if(!\app\index\model\hero\pay\PayVigour::pay_heroVigour($h_id,$need_vigour_num)){
                $back_data['operation_num']=5;//英雄活力不够
                return $back_data;
            }

            //3、鉴定装备操作：（鉴定装备，原装备数减1，如果装备数为0，就删除这条装备）
            $identify_ans=\app\index\model\equipment\identify\IdentifyEquipment::identify_equipment($equipment);

            if($identify_ans!==false){
                $back_data['operation_num']=4;//操作成功
                Db::commit();
            }else{
                $back_data['operation_num']=2;//服务器错误
                Db::rollback();
            }

            //步骤三：将英雄石信息返回到页面
            $school_equipments=\app\index\model\equipment\full_info\GetSchoolEquipments::get_schoolEquipment_fullInfo();
            $school=\app\index\model\school\full_info\GetSchoolFullInfo::get_schoolFullInfo();
            $back_data['school_equipments']=$school_equipments;
            $back_data['school']=$school;

        }
        return $back_data;
    }

页面

        //1、鉴定装备：e_id为装备id，h_id为英雄id
        function identify_equipment(){
            //步骤一：获取装备id和英雄id
            var e_id=$('#identify_equipment_e_id').val();
            var h_id=$('#identify_equipment_h_id').val();
            console.log(e_id);
            console.log(h_id);
            if(!parseInt(e_id)||!parseInt(h_id)) alert('没有可鉴定装备或没有可鉴定装备英雄！！');
            else{
                $.post("{:url('school.warehouse/identify_equipment')}", { e_id: e_id,h_id: h_id} ,function (data) {
                    console.log(data);
                    if(parseInt(data.operation_num)==4){
                        f_mian_header.school=data.school;
                        main_content.school_equipments=data.school_equipments;

                        //console.log(data);
                    }else{
                        if(parseInt(data.operation_num)==7) alert('装备数量不够！！');
                        if(parseInt(data.operation_num)==6) alert('没有可鉴定装备或没有可鉴定装备英雄！！');
                        if(parseInt(data.operation_num)==5) alert('英雄活力不够');
                        if(parseInt(data.operation_num)==3) alert('灵石不够，支付失败');
                        if(parseInt(data.operation_num)==2) alert('服务器错误');
                        if(parseInt(data.operation_num)==1) alert('连接成功');
                        if(parseInt(data.operation_num)==0) alert('连接失败');
                    }
                });
            }

        }
        //2、使用装备-->

8、layer.js使用？

直接在函数中套用提供的代码即可

<script>
    function layer_goods(content_id){
        console.log(content_id);
        layer.open({
            type: 0,
            title: [
                '物品信息',
            ]
            ,content: $('#'+content_id).html()
            ,anim: 'up'
        });
    }
</script>

二、内容在总结中