如何判断MySQL 返回的查询结果为空

$link=mysql_connect(*********)

$sql="SELECT count FROM `test` WHERE value = 10000"

$result=mysql_query($sql,$link)

if($result){

echo "成功"

}else{

echo "失败"

}

String sql="select * from table"

if(sql)

System.out.println("success")

else System.out.println("fail")

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