Future 结算
wait 等待 future settlement
function* verifyPhoneNumber() {
const [smsCode, provideSmsCode] = yield* future<string>();
yield* spawn(function* receiveSmsCode() {
yield* sleep(1000);
yield* settle(provideSmsCode, "4921");
});
return yield* wait(smsCode);
} verifyPhoneNumber 等待 smsCode,直到另一个 process 结算它。
receiveSmsCode 用收到的验证码结算 smsCode。