如何在前端展示后端返回的pdf Base64格式字符串

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• 如何在前端展示后端返回的pdf Base64格式字符串

  如何在前端展示后端返回的pdf Base64格式字符串

  // fileBase64 就是后端返回的 pdf Base64格式字符串    getPdfDocument(fileBase64) {          let fileBlob = this.base64ToBlobsdf(fileBase64,'application/pdf');          let basePdfUrl = window.URL.createObjectURL(fileBlob);          sessionStorage.setItem('basePdfUrl', basePdfUrl);          location.href = "lookPdf.html";          let newWindow = window.open("");          newWindow.document.write("");        }      })    },    base64ToBlobsdf(fileBase64,fileType){      let raw = window.atob(fileBase64);      let rawLength = raw.length;      let uint8Array = new Uint8Array(rawLength);      while (rawLength--){        uint8Array[rawLength] = raw.charCodeAt(rawLength);      }      return new Blob([uint8Array],{type: fileType});    },