uni.loadFontFace在VUE3 iOS真机运行时加载失败

async loadFontFaceFromCache1() {
let tempFilePath
const savedFilePath = uni.getStorageSync('PingFang')

            try {  
                const res = await new Promise((resolve, reject) => {  
                    uni.getSavedFileList({  
                        success: (res) => resolve(res),  
                        fail: (err) => reject(err)  
                    })  
                })  

                const fileList = res.fileList  
                const file = fileList.find(file => file.filePath === savedFilePath)  
                if (file) {  
                    tempFilePath = file.filePath  
                }  
            } catch (error) {  
                console.error('获取文件列表失败:', error)  
            }  

            if (!tempFilePath) {  
                try {  
                    const res = await new Promise((resolve, reject) => {  
                        uni.downloadFile({  
                            url: 'https://www.dingjianyun.com/littleAppImages/djsoftTool/fonts/PingFangSC-Medium.otf',  
                            success: (res) => resolve(res),  
                            fail: (err) => reject(err)  
                        })  
                    })  

                    tempFilePath = res.tempFilePath  
                    uni.saveFile({  
                        tempFilePath,  
                        success(res) {  
                            uni.setStorage({  
                                key: 'PingFang',  
                                data: res.savedFilePath  
                            })  
                        }  
                    })  
                } catch (error) {  
                    console.log('下载失败:', error)  
                    return  
                }  
            } else {  
                console.log('使用缓存资源，跳过下载步骤')  
            }  

            // Vue 3 中的 loadFontFace 调用方式  
            try {  
                await new Promise((resolve, reject) => {  
                    uni.loadFontFace({  
                        family: 'PingFang SC',  
                        source: `url("${plus.io.convertLocalFileSystemURL(tempFilePath)}")`,  
                        success: (res) => {  
                            console.log('字体加载成功:', res)  
                            resolve(res)  
                        },  
                        fail: (err) => {  
                            console.error('字体加载失败:', err)  
                            reject(err)  
                        },  
                        complete: () => {  
                            console.log('字体加载完成')  
                        }  
                    })  
                })  
            } catch (error) {  
                console.error('字体加载过程出错:', error)  
            }  
        },  

Vue3 在iOS端App运行时 加载失败 vue2中可以正常加载