老师你看还需要修改么

var arr=[

["小慕","男",23],

["小欧","女",22],

["小课","男",24],

["小时","女",22],

["小码","女",20]

]

// 补充代码

var newArr=[];

for(var i=0;i<arr.length;i++){

    for(var j=0;j<3;j++){

        if(arr[i][j]=='女'){

            newArr[newArr.length]=arr[i];

        }

    }

}

console.log(newArr);