复制深度嵌套的对象，但省略特定的key，其中key也是一个数组

function deepCopyWithoutKeys(obj, omitKeys) {
  if (Array.isArray(obj)) {
    var result = [];
    for (var i = 0; i < obj.length; i++) {
      if (!omitKeys.includes(i)) {
        if (typeof obj[i] === 'object' && obj[i] !== null) {
          result[i] = deepCopyWithoutKeys(obj[i], omitKeys);
        } else {
          result[i] = obj[i];
        }
      }
    }
    return result;
  } else if (typeof obj === 'object' && obj !== null) {
    var result = {};
    for (var key in obj) {
      if (!omitKeys.includes(key)) {
        if (typeof obj[key] === 'object' && obj[key] !== null) {
          result[key] = deepCopyWithoutKeys(obj[key], omitKeys);
        } else {
          result[key] = obj[key];
        }
      }
    }
    return result;
  } else {
    return obj;
  }
}

// 示例用法
var obj = {
  key1: 'value1',
  key2: 'value2',
  key3: {
    nestedKey1: 'nestedValue1',
    nestedKey2: 'nestedValue2'
  },
  key4: [1, 2, 3],
  key5: {
    nestedKey3: {
      deeplyNestedKey: 'deeplyNestedValue'
    }
  }
};

var omitKeys = ['key1', 'key3', 'nestedKey2', 2];
var copiedObj = deepCopyWithoutKeys(obj, omitKeys);
console.log(copiedObj);