A页面

select_stockid() {
	const selectedListOld = JSON.stringify(this.list_stockid);
	const encodedParam = encodeURIComponent(selectedListOld);
	uni.navigateTo({
		url: `../select_stockid/select_stockid?selectedList_old=${encodedParam}`
	})
},

B页面

onShow() {
	let pages = getCurrentPages();
	let currentPage = pages[pages.length - 1];
	let options = currentPage.options;
	if (options.selectedList_old) {
		let selectedListOld = JSON.parse(options.selectedList_old);
		console.log(selectedListOld); // 输出传递的数组参数
	}
},