/**
 * 参数处理
 * @param {*} params  参数
 */
export function tansParams(params) {
  let result = ''
  for (const propName of Object.keys(params)) {
    const value = params[propName]
    const part = `${encodeURIComponent(propName)}=`
    if (value !== null && value !== '' && typeof value !== 'undefined') {
      if (typeof value === 'object') {
        for (const key of Object.keys(value)) {
          if (value[key] !== null && value[key] !== '' && typeof value[key] !== 'undefined') {
            const params = `${propName}[${key}]`
            const subPart = `${encodeURIComponent(params)}=`
            result += `${subPart + encodeURIComponent(value[key])}&`
          }
        }
      } else {
        result += `${part + encodeURIComponent(value)}&`
      }
    }
  }
  return result
}