forEach配合Switch

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方式一

res.data.forEach((item,index)=>{
        switch(item.isDelete){
            case 0:
            item.isDelete=false;
            break;
            case 1:
            item.isDelete=true;
            break;
         }
      res.data[index]['isDelete']=item.isDelete

     })
  console.log(res.data)

方式二

$arr    = array(1,2,3,4,5);
foreach ($arr as $v){
    switch ($v){
        case 1:
            echo 1;
            break;
        case 2:
            echo 2;
            break;
    }
}

注意:switch每一个分支都要加上break,否则会出错