import { Pipe, PipeTransform } from '@angular/core'; @Pipe({ name: 'rechargeStatus' }) export class RechargeStatusPipe implements PipeTransform { transform(value: number): string { switch (value) { case 201: return '充值中'; case 202: return '充值成功'; case 203: return '充值失败'; case 204: return '未充值'; } } }