[‘D303‘,‘A303‘,‘A304‘,‘A305‘,‘A306‘,‘B303‘,‘C303‘,‘A403‘,‘B403‘]创建对象排序_网过里e1e00b

data() {
	return {
		data:['D303','A303','A304','A305','A306','B303','C303','A403','B403'],
		items:[]
	};
},
mounted() {
	let latter = [],//截取首字母
		items={};
	this.data = [...this.data].sort();//排序
	this.data.map(ele=>{
		let firstLatter = ele.substr(0,1);//首字母
		latter = [...new Set([...[...latter,...firstLatter]])]
	})
	latter.map(ele=>{//遍历字母对象
		items[ele] = []
	})
	this.data.map(ele=>{//向对象对应数组传值
		let firstLatter = ele.substr(0,1);//首字母
		items[firstLatter].push(ele)
	})
	console.log(items)
},
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考虑到上面的不太好遍历，小改了下

let latter = [],//截取首字母
	items=[];
this.data = [...this.data].sort();//排序
this.data.map(ele=>{
	let firstLatter = ele.substr(0,1);//首字母
	latter = [...new Set([...[...latter,...firstLatter]])]
})
latter.map(ele=>{//遍历字母对象
	items.push({
		latter:ele,
		data:[]
	})
})
this.data.map(ele=>{//向对象对应数组传值
	let firstLatter = ele.substr(0,1);//首字母
	items[latter.indexOf(firstLatter)].data.push(ele)//向对应的data塞值
})
console.log(items)
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