我正在尝试制作以下内容：
x = scanf(stdin);
但它必须在OCaml，我一直在阅读，但我似乎无法找到一个正确的方法来做到这一点，我正在做的是一个纸牌游戏，并在一开始我想问用户游戏，通过终端，将要玩的玩家数量，这就是我需要从标准扫描的原因。非常感谢你提前。
答案 0 :(得分：0)
对于这么简单的任务，scanf可能有点过分。您可能希望使用read_int开始使用。
# read_int ();;
17
- : int = 17
（这里的第二行是用户输入的，即我。）
答案 1 :(得分：0)
您不必指定const rowData = [
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 09:00:00",
dateEnd: "2019-10-12 09:05:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 08:40:00",
dateEnd: "2019-10-12 08:45:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 08:15:00",
dateEnd: "2019-10-12 08:25:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 08:10:00",
dateEnd: "2019-10-12 08:15:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 08:00:00",
dateEnd: "2019-10-12 08:05:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 07:00:00",
dateEnd: "2019-10-12 08:05:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 06:00:00",
dateEnd: "2019-10-12 07:05:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 05:00:00",
dateEnd: "2019-10-12 06:05:000"
},
{
server: "Server 1",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 04:00:00",
dateEnd: "2019-10-12 05:05:000"
},
{
server: "Server 2",
ping: "10 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 09:03:00",
dateEnd: "2019-10-12 09:05:000"
},
{
server: "Server 2",
ping: "2 ms",
dl: "50Mbit/s",
ul: "50Mbit/s",
ispcon: true,
dateStart: "2019-10-12 09:00:00",
dateEnd: "2019-10-12 09:01:000"
}
];
const res = Object.values(
rowData.sort((a, b) =>
(new Date(a.dateStart).getTime()) -
(new Date(b.dateStart).getTime())).reduce((acc, curr) => {
const { server, ...rest_curr } = curr;
return {
...acc,
[curr.server]:
curr.server in acc
? {
...acc[curr.server],
data: [...acc[curr.server].data, { ...rest_curr }]
}
: { ...curr, data: [{ ...rest_curr }] }
};
}, {})
);
console.log(res);，可以执行以下操作：
stdin