我有两个循环。我怎么能交替运行它们? 例如,此代码的输出:
for (var i = 15; i >= 10; i--) {
console.log(i)
}
for (var t = 15; t <= 20; t++) {
console.log(t)
}
将是:
15 // first loop started
14
13
12
11
10 // first loop ended
15 // second loop started
16
17
18
19
20 // second loop ended
如何获得此输出:
15 //first loop started
15 //second loop started
14 //first
16 //second
13 //first
17 //second
12 //first
18 //second
11 //first
19 //second
10 //first loop ended
20 //second loop ended
答案 0 :(得分:3)
您可以将初始化,条件和最终表达式部分放在一个for循环中。
for (var i = 15, t = 15; i >= 10 && t <= 20; i--, t++) {
console.log(i)
console.log(t)
}