HarmonyOS ArkTS不支持解构，导致编码冗长，有没有方法

可以封装assign方法，示例代码如下：

function assignUtil(target: Record<string, Object>, ...source: Object[]): Record<string, Object> {
  for (let s of source) {
    for (let k of Object.keys(s)) {
      target[k] = Reflect.get(s, k)
    }
  }
  return target
}
class D {
  a: number;
  b: number;
  c: number;
  constructor(v1: number, v2: number, v3: number) {
    this.a = v1;
    this.b = v2;
    this.c = v3;
  }
}
const target: Record<string, Object> = { "a": 1, "b": 2, }
const source: D = new D(3, 4, 5)
console.log(JSON.stringify(target))
const returnedTarget: Record<string, Object> = assignUtil(target, source)
console.log(JSON.stringify(target))
// Expected output: Object {"a":3,"b":4,"c":5}
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