signal
import { createSignal } from "solid-js";
const [getCount, setCount] = createSignal(0);
声明了一个响应式变量
console.log(getCount()); // 0
setCount(getCount() + 1);
console.log(getCount()); // 1
effect
import { createSignal, createEffect } from "solid-js";
const [getCount, setCount] = createSignal(0);
createEffect(() => console.log(getCount()));
会响应式地被触发