break和continue

//break语句
for(count = 0; count < 10; count++){
    console.log("跑步第 " + (count+1) + "圈" )
    if(count == 4){
        break; //跳出整个循环，后面将不再执行
    }
}


//continue语句
for(count = 0; count < 10; count++){
    if(count == 4){
        continue; //跳出本次循环，本次循环之后的语句不再执行。然后继续下一次循环
    }
    console.log("跑步第 " + (count+1) + "圈" )
}