我知道需要使用switch语句,大概的思路我画成了图
var count = 0;function cc(card) {switch (card){ case 2: case 3: case 4: case 5: case 6:count++; break; case 10: case "J": case "Q": case "K": case "A":count--; break;} if (count>0){ return (count+" "+"Bet");} else{ return (count+" "+"Hold");}return "Change Me";}早上自己写出来了……
function cc(card) {
// Only change code below this line
switch (card) {
case 2:
case 3:
case 4:
case 5:
case 6:
count++;
break;
case 7:
case 8:
case 9:
break;
case 10:
case 'J':
case 'Q':
case 'K':
case 'A':
count--
break;
}
return (count + ((count > 0) ? " Bet" : " Hold"));
// Only change code above this line
}
// Add/remove calls to test your function.
// 提示: Only the last will display
cc(2); cc(3); cc(7); cc('K'); cc('A');
// 使用三木运算符更有质量