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JavaScript30项目挑战解决方案与功能增强

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根据提供的文件信息,我们可以了解到一个项目名为"JavaScript30.github.io"的内容,该内容强调了一个针对特定挑战课程的项目实践,涉及到对错误的修复以及对项目功能的增强。接下来,我将详细解释标题和描述中涉及的知识点,并尽可能详细地展开讨论每个相关主题。 首先,标题中提到的"JavaScript30.github.io:我的解决方案包括已修复的错误和一些额外的新增功能"揭示了这是一个包含错误修正和功能改进的项目。这表明作者参与了一个名为"JavaScript30"的挑战课程,这个课程由30个基于JavaScript的项目组成,每个项目都针对一个特定的主题或技术点。项目中解决了在开发过程中遇到的问题,并且在此基础上添加了新的功能。这种实践不仅有助于巩固学习者对于JavaScript的理解,还增强了其解决问题和扩展现有代码的能力。 描述中提到了一系列的挑战和解决方案,其中包含了多个关键知识点: 1. "使每个‘键’也具有单击触发器"可能意味着在某个项目中,例如一个简单的音乐播放器,每个键盘按键都被赋予了播放特定音符的功能。 2. "第2天-JS和CSS时钟"中的项目可能涉及使用JavaScript和CSS创建一个数字时钟。此外,还提到了修复在周期开始时可能出现的跳过动画问题,这通常与JavaScript中处理时间更新的逻辑有关。 3. "第三天-CSS变量"的描述说明了创建了新的样式控件,并且这些控件可能依赖于CSS自定义属性(变量)来增强样式的一致性和可维护性。 4. "第四天-阵列有氧运动第一天"中的挑战可能是关于对数组进行操作,如排序、映射、过滤等,以实现某些动态数据处理的任务。 5. "第五天-Flex Panel Gallery"可能涉及到使用CSS的Flexbox布局来设计一个灵活的图片画廊。 6. "第六天-提前输入"中的挑战可能包括处理输入字段事件,如实时搜索功能,并在没有匹配项时以一种干净且用户友好的方式显示结果。 7. "第7天-阵列有氧运动第2天"可能是一个进阶的数组操作练习,要求学员在没有详细指导的情况下,使用内嵌注释作为提示完成挑战。 8. "第八天-HTML5画布带来的乐趣"涉及了HTML5的`<canvas>`元素,这是一个用于在网页上绘制图形的位图区域。描述中提到了在特定时间点暂停并尝试模仿绘图模式,这可能是一种学习和理解canvas绘图API的实践方法。 在标签中指出了"HTML",说明这个项目可能主要涉及HTML技术,尽管从描述中可以推测项目也涉及JavaScript和CSS的大量使用。 最后,提到的"压缩包子文件的文件名称列表"中的"JavaScript30.github.io-main"表明了项目的主要文件夹或仓库的名称。 综合以上信息,"JavaScript30"项目是一个针对JavaScript初学者的练习课程,它覆盖了网页设计和开发中的多个关键主题。通过这一系列的项目挑战,学习者可以逐步提高编码技巧,并学会调试和增强代码的功能。这些技能对于任何希望在前端开发领域取得进步的开发者来说都是至关重要的。

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#给下面的程序加上一个数字大屏风格的界面,要求将各种输入项、进度条、结果等以合理的布局排列好 import torch import os import sys import subprocess import importlib import time import re import warnings from PIL import ImageFont, ImageDraw, Image import numpy as np # 忽略特定的警告 warnings.filterwarnings("ignore", category=UserWarning, module="transformers") # 检查并安装必要的依赖包 def check_and_install_dependencies(): """检查并安装必要的依赖包""" required_packages = ['protobuf', 'sentencepiece', 'requests', 'pillow', 'transformers'] missing_packages = [] for package in required_packages: try: importlib.import_module(package) print(f"✓ {package} 已安装") except ImportError: missing_packages.append(package) print(f"✗ {package} 未安装") if missing_packages: print(f"\n需要安装以下依赖包: {', '.join(missing_packages)}") response = input("是否立即安装? (y/n): ") if response.lower() == 'y': for package in missing_packages: try: subprocess.check_call([sys.executable, "-m", "pip", "install", package]) print(f"✓ {package} 安装成功") except subprocess.CalledProcessError: print(f"✗ {package} 安装失败,请手动安装: pip install {package}") return False else: print("请手动安装依赖: pip install protobuf sentencepiece requests pillow transformers") return False return True def check_cuda_availability(): """检查CUDA是否可用""" print("=" * 50) print("系统诊断信息:") print("=" * 50) print(f"PyTorch版本: {torch.__version__}") cuda_available = torch.cuda.is_available() print(f"CUDA可用: {cuda_available}") if cuda_available: gpu_count = torch.cuda.device_count() print(f"GPU数量: {gpu_count}") for i in range(gpu_count): gpu_name = torch.cuda.get_device_name(i) gpu_memory = torch.cuda.get_device_properties(i).total_memory / 1024 ** 3 print(f"GPU {i}: {gpu_name}, 显存: {gpu_memory:.1f}GB") else: print("CUDA不可用原因可能是:") print("1. 安装了CPU版本的PyTorch") print("2. GPU驱动程序未正确安装") print("3. CUDA工具包未安装或版本不匹配") print("=" * 50) return cuda_available # 检查中文字体是否存在,不存在则安装 def install_chinese_font(): """安装中文字体支持""" font_path = "./NotoSansSC-Regular.ttf" if not os.path.exists(font_path): print("检测到缺少中文字体,正在安装...") try: import requests font_url = "https://github.com/googlefonts/noto-cjk/raw/main/Sans/OTF/SimplifiedChinese/NotoSansSC-Regular.otf" # 确保字体目录存在 os.makedirs(os.path.dirname(font_path), exist_ok=True) response = requests.get(font_url) with open(font_path, "wb") as f: f.write(response.content) print(f"中文字体已安装到: {font_path}") except Exception as e: print(f"字体安装失败: {e}") # 回退到系统默认字体 try: from matplotlib.font_manager import findfont, FontProperties font = findfont(FontProperties(family=['sans-serif'])) print(f"使用系统字体: {font}") return font except: print("无法找到系统字体,将使用PIL默认字体") return None return font_path # 处理中文提示词 def process_chinese_prompt(prompt, image): """在生成的图像上添加中文文本""" try: # 检查是否包含中文 if re.search(r'[\u4e00-\u9fff]', prompt): print("检测到中文提示词,添加中文文本到图像...") font_path = install_chinese_font() # 转换图像为PIL格式 pil_image = image.convert("RGBA") draw = ImageDraw.Draw(pil_image) font_size = max(20, min(pil_image.width // 30, 40)) # 使用中文字体 try: if font_path: font = ImageFont.truetype(font_path, font_size) else: raise IOError("自定义字体不可用") except (IOError, OSError): print("字体加载失败,使用默认字体") font = ImageFont.load_default() # 在图像底部添加中文文本 text_width = sum(font.getbbox(char)[2] - font.getbbox(char)[0] for char in prompt) if text_width > pil_image.width - 20: # 文本太长时自动换行 lines = [] current_line = "" for char in prompt: test_line = current_line + char test_width = sum(font.getbbox(c)[2] - font.getbbox(c)[0] for c in test_line) if test_width <= pil_image.width - 20: current_line = test_line else: lines.append(current_line) current_line = char lines.append(current_line) for i, line in enumerate(lines): text_position = (10, pil_image.height - (len(lines) - i) * (font_size + 5)) draw.text(text_position, line, font=font, fill=(255, 255, 255, 255)) else: text_position = (10, pil_image.height - font_size - 10) draw.text(text_position, prompt, font=font, fill=(255, 255, 255, 255)) return pil_image.convert("RGB") return image except Exception as e: print(f"中文处理出错: {e}") return image def main(): # 设置环境变量 os.environ["PYTORCH_CUDA_ALLOC_CONF"] = "expandable_segments:True" os.environ["PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION"] = "python" # 添加编码设置支持中文 if sys.stdout.encoding != 'UTF-8': os.environ["PYTHONIOENCODING"] = "utf-8" sys.stdout = open(sys.stdout.fileno(), mode='w', encoding='utf-8', buffering=1) sys.stderr = open(sys.stderr.fileno(), mode='w', encoding='utf-8', buffering=1) # 检查依赖 if not check_and_install_dependencies(): print("依赖安装失败,程序退出") return False # 检查CUDA可用性 cuda_available = check_cuda_availability() try: from modelscope import FluxPipeline print("成功导入modelscope") except ImportError as e: print(f"导入 modelscope 失败: {e}") print("请确保已安装 modelscope: pip install modelscope") return False # 指定本地模型路径 local_model_path = r"D:\black-forest-labs\FLUX___1-schnell" model_id = "black-forest-labs/FLUX___1-schnell" pipe = None # 检查模型目录是否存在且包含必要文件 use_local_model = False if os.path.exists(local_model_path): model_index_path = os.path.join(local_model_path, "model_index.json") if os.path.exists(model_index_path): print("尝试从本地路径加载模型...") try: pipe = FluxPipeline.from_pretrained(local_model_path, torch_dtype=torch.float16) print("成功从本地路径加载模型") use_local_model = True except Exception as e: print(f"从本地路径加载模型失败: {e}") print("将尝试从ModelSpace下载模型") # 如果本地模型加载失败,从ModelSpace下载 if not use_local_model: try: print(f"开始从ModelSpace下载模型: {model_id}") pipe = FluxPipeline.from_pretrained(model_id, torch_dtype=torch.float16) print(f"成功下载并加载模型: {model_id}") # 保存模型到本地 print(f"保存模型到本地: {local_model_path}") os.makedirs(local_model_path, exist_ok=True) pipe.save_pretrained(local_model_path) except Exception as e: print(f"从ModelSpace加载模型失败: {e}") return False # 获取用户输入的提示词 prompt = input("请输入提示词(支持中英文混合): ") print(f"输入的提示词: {prompt}") # 处理图像生成流程 return process_pipeline(pipe, cuda_available, prompt) def process_pipeline(pipe, cuda_available, prompt): """处理图像生成流程""" # 清理显存缓存 if torch.cuda.is_available(): torch.cuda.empty_cache() device = "cuda" if cuda_available else "cpu" print(f"尝试将模型加载到设备: {device}") try: # 如果有多GPU且显存充足,使用enable_model_cpu_offload if torch.cuda.device_count() > 1 and torch.cuda.get_device_properties(0).total_memory > 4 * 1024 ** 3: pipe.enable_model_cpu_offload() print("已启用模型CPU卸载,降低显存占用") else: pipe = pipe.to(device) print(f"模型已移动到 {device}") except Exception as e: print(f"模型移动失败: {e}") try: pipe = pipe.to(device) print(f"使用替代方法将模型移动到 {device}") except: print("无法移动模型,将尝试使用CPU模式") device = "cpu" pipe = pipe.to(device) print(f"生成提示词: {prompt}") print("开始生成图像...") start_time = time.time() try: # 根据设备选择生成器 if device == "cuda": generator = torch.Generator(device="cuda").manual_seed(0) else: generator = torch.Generator(device="cpu").manual_seed(0) # 生成图像 - 增加参数提高中文识别能力 image = pipe( prompt, height=128, width=128, guidance_scale=8.5, num_inference_steps=10, max_sequence_length=256, generator=generator ).images[0] # 处理中文文本 image = process_chinese_prompt(prompt, image) end_time = time.time() generation_time = end_time - start_time print(f"图像生成完成,耗时: {generation_time:.2f}秒") output_path = "flux-schnell.png" image.save(output_path) print(f"图像已成功保存为: {output_path}") return True except Exception as e: print(f"图像生成失败: {str(e)}") return False if __name__ == "__main__": print("=" * 60) print("FLUX 图像生成程序启动 (支持中英文混合提示词) - 修复版") print("=" * 60) success = main() if success: print("程序执行成功!") else: print("程序执行失败!") print("\n可能的原因和解决方案:") print("1. 确保已安装所有必要依赖: pip install protobuf sentencepiece requests pillow transformers") print("2. 检查PyTorch CUDA版本是否与您的GPU驱动程序兼容") print("3. 尝试重新安装PyTorch的CUDA版本:") print(" pip uninstall torch torchvision torchaudio") print(" pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu118") print("4. 更新GPU驱动程序到最新版本") print("5. 确保已安装CUDA工具包 (https://developer.nvidia.com/cuda-downloads)") print("6. 如果问题持续,请尝试在GitHub提交issue")

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帮我完善一下。现在报错 15:10:19.642 上传失败:, Error: 无法获取文件名 at pages/sync/getServerFiles.vue:201 <template> <view class="container"> <view class="url-display"> <text>服务器地址:{{ serverUrl }}</text> </view> <view class="button-group"> <button class="btn primary" @click="startUpload">上传文件</button> </view> <view v-if="uploading" class="progress-area"> <progress :percent="uploadProgress" active stroke-width="4" /> <text class="progress-text">上传中: {{ uploadProgress }}%</text> <text class="debug-text" v-if="debugInfo">{{ debugInfo }}</text> </view> <view v-if="uploadedFile.fileName" class="result-box"> <text class="result-text">文件名: {{ uploadedFile.fileName }}</text> <text class="result-text">保存路径: {{ uploadedFile.filePath }}</text> </view> </view> </template> <script> export default { data() { return { serverUrl: 'http://192.168.181.101:4440/', uploading: false, uploadProgress: 0, uploadedFile: {}, debugInfo: '', fileAccessGranted: false, originalFileObj: null, fileObjString: '', fileObjKeys: [] }; }, methods: { // 环境检测 checkAppEnvironment() { if (typeof plus === 'undefined') { throw new Error('plus API未加载,请使用自定义基座'); } if (typeof plus.io.chooseFile !== 'function') { throw new Error('plus.io.chooseFile不可用,请检查基座配置'); } return true; }, // 请求文件访问权限(主方法) async requestFileAccessPermission() { return new Promise((resolve, reject) => { if (this.fileAccessGranted) { resolve(true); return; } if (plus.os.name === 'Android') { const androidVersion = parseInt(plus.os.version) || 0; this.debugInfo = `请求文件访问权限... → 检测到Android版本: ${androidVersion}`; if (androidVersion >= 10) { // 调用Android 10+权限请求方法 this.requestAndroid10Permissions().then(resolve).catch(reject); } else { // 调用传统Android权限请求方法 this.requestTraditionalPermissions().then(resolve).catch(reject); } } else if (plus.os.name === 'iOS') { this.debugInfo = '请求文件访问权限... → 检测到iOS系统'; this.checkIOSPermissions().then(resolve).catch(reject); } else { this.fileAccessGranted = true; this.debugInfo += ' → 未知系统,默认授予权限'; resolve(true); } }); }, // 定义Android 10+权限请求方法(关键修复) requestAndroid10Permissions() { return new Promise((resolve, reject) => { try { const main = plus.android.runtimeMainActivity(); const Context = plus.android.importClass("android.content.Context"); // 检查是否已有读取权限 const hasReadPermission = main.checkSelfPermission( "android.permission.READ_EXTERNAL_STORAGE" ) === 0; if (hasReadPermission) { this.fileAccessGranted = true; this.debugInfo += ' → 已拥有Android 10+文件访问权限'; resolve(true); return; } // 请求权限 plus.android.requestPermissions( [ "android.permission.READ_EXTERNAL_STORAGE", "android.permission.WRITE_EXTERNAL_STORAGE" ], (result) => { const granted = result.granted || []; if (granted.includes("android.permission.READ_EXTERNAL_STORAGE")) { this.fileAccessGranted = true; this.debugInfo += ' → Android 10+权限请求成功'; resolve(true); } else { this.debugInfo += ' → Android 10+权限请求被拒绝'; reject(new Error('需要文件访问权限才能上传文件')); } }, (error) => { this.debugInfo += ` → Android 10+权限请求失败: ${error.message}`; reject(new Error(`权限请求失败: ${error.message}`)); } ); } catch (e) { this.debugInfo += ` → Android 10+权限请求异常: ${e.message}`; reject(new Error(`权限处理异常: ${e.message}`)); } }); }, // 定义传统Android权限请求方法(关键修复) requestTraditionalPermissions() { return new Promise((resolve, reject) => { try { // 请求传统存储权限 plus.android.requestPermissions( [ "android.permission.READ_EXTERNAL_STORAGE", "android.permission.WRITE_EXTERNAL_STORAGE" ], (result) => { const granted = result.granted || []; if (granted.includes("android.permission.READ_EXTERNAL_STORAGE")) { this.fileAccessGranted = true; this.debugInfo += ' → 传统Android权限请求成功'; resolve(true); } else { this.debugInfo += ' → 传统Android权限请求被拒绝'; reject(new Error('需要文件访问权限才能上传文件')); } }, (error) => { this.debugInfo += ` → 传统Android权限请求失败: ${error.message}`; reject(new Error(`权限请求失败: ${error.message}`)); } ); } catch (e) { this.debugInfo += ` → 传统Android权限请求异常: ${e.message}`; reject(new Error(`权限处理异常: ${e.message}`)); } }); }, // 定义iOS权限检查方法(关键修复) checkIOSPermissions() { return new Promise((resolve) => { try { // iOS通常不需要显式请求文件访问权限,这里简化处理 this.fileAccessGranted = true; this.debugInfo += ' → iOS系统,默认授予文件访问权限'; resolve(true); } catch (e) { this.debugInfo += ` → iOS权限检查异常: ${e.message}`; resolve(true); // iOS权限处理容错 } }); }, // 开始上传 async startUpload() { try { this.uploading = true; this.uploadProgress = 0; this.debugInfo = '开始上传...'; this.checkAppEnvironment(); this.debugInfo = '环境检查通过'; await this.requestFileAccessPermission(); this.debugInfo = '权限检查通过'; const file = await this.selectAppFile(); this.debugInfo = `已选择文件: ${file.name}, 大小: ${this.formatSize(file.size)}`; const result = await this.uploadFile(file); this.uploadedFile = result; this.debugInfo = '上传成功'; uni.showToast({ title: '上传成功', icon: 'success' }); } catch (error) { console.error('上传失败:', error); this.debugInfo = `上传失败: ${error.message}`; uni.showToast({ title: error.message, icon: 'none' }); } finally { this.uploading = false; } }, // 选择文件(简化版,确保核心逻辑) selectAppFile() { return new Promise((resolve, reject) => { try { this.debugInfo = '打开文件选择器...'; plus.io.chooseFile({ accept: '*/*', multiple: false }, (fileObj) => { if (!fileObj) { reject(new Error('用户取消选择')); return; } // 提取文件名(简化版) let fileName = fileObj.name || fileObj.filename; if (!fileName && fileObj.fullPath) { fileName = fileObj.fullPath.split('/').pop() || 'unknown_file'; } if (!fileName) { reject(new Error('无法获取文件名')); return; } // 提取文件路径(简化版) let filePath = fileObj.fullPath || fileObj.localURL; if (!filePath) { reject(new Error('无法获取文件路径')); return; } // 规范化路径 if (filePath.startsWith('file://')) { filePath = filePath.substring(7); } resolve({ name: fileName, path: filePath, size: fileObj.size || 0 }); }, (err) => { reject(new Error(`选择文件失败: ${err.message || err.code}`)); }); } catch (error) { reject(new Error(`文件选择异常: ${error.message}`)); } }); }, // 上传文件 uploadFile(file) { return new Promise((resolve, reject) => { if (!file || !file.path) { reject(new Error('文件路径无效')); return; } if (!file.name) { reject(new Error('文件名不能为空')); return; } const uploadUrl = `${this.serverUrl}start/uploadFileAndFileName`; this.debugInfo = `上传到: ${uploadUrl},文件: ${file.name}`; const task = uni.uploadFile({ url: uploadUrl, filePath: file.path, name: 'file', formData: { fileName: file.name }, header: { 'Content-Type': 'multipart/form-data' }, success: (res) => { if (res.statusCode === 200) { try { const result = JSON.parse(res.data); if (result.success) resolve(result.data); else reject(new Error(`服务器错误: ${result.msg}`)); } catch (e) { reject(new Error(`解析响应失败: ${res.data}`)); } } else { reject(new Error(`服务器状态码: ${res.statusCode}`)); } }, fail: (err) => { reject(new Error(`上传失败: ${err.errMsg}`)); } }); task.onProgressUpdate((res) => { this.uploadProgress = res.progress; }); }); }, // 格式化文件大小 formatSize(bytes) { if (bytes === 0) return '0 B'; const k = 1024; const sizes = ['B', 'KB', 'MB']; const i = Math.floor(Math.log(bytes) / Math.log(k)); return `${(bytes / Math.pow(k, i)).toFixed(2)} ${sizes[i]}`; } } }; </script> <style> /* 保持原有样式 */ .container { padding: 20rpx; } .url-display { padding: 20rpx; background: #f5f5f5; border-radius: 10rpx; margin-bottom: 20rpx; } .button-group { margin: 30rpx 0; } .btn { width: 100%; border-radius: 10rpx; padding: 20rpx 0; font-size: 28rpx; color: white; background: #9C27B0; } .progress-area { margin: 40rpx 0; } .progress-text { display: block; text-align: center; margin-top: 10rpx; color: #666; } .debug-text { display: block; text-align: center; margin-top: 10rpx; color: #f00; } .result-box { padding: 20rpx; background: #e8f4ff; border-radius: 10rpx; margin-top: 30rpx; } .result-text { display: block; line-height: 1.8; } </style>

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