113 lines
3.4 KiB
Python
113 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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压缩小程序图片
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将 static 目录下的大图片压缩到合适大小
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"""
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import os
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from PIL import Image
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import sys
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def compress_image(input_path, output_path, quality=85, max_width=1200):
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"""
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压缩图片
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:param input_path: 输入图片路径
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:param output_path: 输出图片路径
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:param quality: 压缩质量 (1-100)
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:param max_width: 最大宽度
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"""
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try:
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# 打开图片
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img = Image.open(input_path)
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# 获取原始尺寸
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width, height = img.size
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original_size = os.path.getsize(input_path) / 1024 # KB
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# 如果宽度超过最大宽度，按比例缩放
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if width > max_width:
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ratio = max_width / width
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new_width = max_width
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new_height = int(height * ratio)
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img = img.resize((new_width, new_height), Image.Resampling.LANCZOS)
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print(f" 缩放: {width}x{height} -> {new_width}x{new_height}")
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# 转换为 RGB 模式（如果是 RGBA）
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if img.mode in ('RGBA', 'LA', 'P'):
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background = Image.new('RGB', img.size, (255, 255, 255))
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if img.mode == 'P':
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img = img.convert('RGBA')
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background.paste(img, mask=img.split()[-1] if img.mode == 'RGBA' else None)
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img = background
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# 保存压缩后的图片
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img.save(output_path, 'JPEG', quality=quality, optimize=True)
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# 获取压缩后的大小
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compressed_size = os.path.getsize(output_path) / 1024 # KB
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ratio = (1 - compressed_size / original_size) * 100
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print(f" 原始: {original_size:.2f}KB -> 压缩后: {compressed_size:.2f}KB (减少 {ratio:.1f}%)")
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return True
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except Exception as e:
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print(f" 错误: {str(e)}")
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return False
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def main():
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# 源目录和目标目录
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source_dir = "peidu/uniapp/src/static/button"
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# 需要压缩的大图片列表
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large_images = [
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"supervision.jpg",
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"assessor.jpg",
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"companion.jpg",
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"study-tour.jpg",
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"special.jpg",
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"planner.jpg",
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"summer-camp.jpg",
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"interest.jpg",
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"one-on-one.jpg",
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"parent-academy.jpg"
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]
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print("开始压缩图片...")
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print("=" * 60)
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success_count = 0
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fail_count = 0
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for image_name in large_images:
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input_path = os.path.join(source_dir, image_name)
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if not os.path.exists(input_path):
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print(f"\n跳过 {image_name} (文件不存在)")
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continue
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print(f"\n处理: {image_name}")
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# 直接覆盖原文件
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output_path = input_path
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# 先保存到临时文件
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temp_path = input_path + ".tmp"
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if compress_image(input_path, temp_path, quality=85, max_width=1200):
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# 删除原文件，重命名临时文件
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os.remove(input_path)
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os.rename(temp_path, output_path)
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success_count += 1
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else:
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# 删除临时文件
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if os.path.exists(temp_path):
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os.remove(temp_path)
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fail_count += 1
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print("\n" + "=" * 60)
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print(f"压缩完成！成功: {success_count}, 失败: {fail_count}")
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print("\n请重新编译小程序:")
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print(" npm run dev:mp-weixin")
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if __name__ == "__main__":
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main()
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