方法一： 1 handleArr () { 2 let arr = [[1], [1], [1, 2], [3], [1], [2, 4, 6], [3]] 3 let obj = {} 4 arr.forEach(item => { 5 obj[item] = item 6 }) 7 console.log(Object.values(obj)) 8 } 方法二： 1 handleArr () { 2 let arr
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