print(3.0 // 2)print(3.2 // 1.5)print(3 ** 2)print(4.0 ** 3)print(5**3)print(9**(1/2)) # 指数运算。该操作使用两个星号 ** 表示。print(True + True) # 1 + 1 print(True * False) # 1 * 0 # print(True / False) # 1 / 0 # Python 中使用浮点数来表示不是整数的...
诺德跃旭国标4.0mm厚预铺PY类自粘防水卷材 聚酯胎自粘防水卷材BAC自粘改性聚酯防水卷材是一种经过改造的、高品质的改性沥青并含有新型自粘材料的,防水卷材。BAC自粘改性聚酯防水卷材在使用时,具有非常强的粘合力,可使用湿铺法施工,它其中独特的高分子合物能够与水泥砂浆或水泥素浆粘贴,自粘胶料能与未固化的水泥水化物...
AI代码解释 ##gff-version3# gffread v0.12.7# gffread-E--keep-genes/mnt/shared/scratch/wguo/barkeRTD/stringtie/B1/Stringtie_B1.gtf-o00.newgtf/B1/Stringtie_B1_new.gtf chr1H_part_1 StringTie gene7214173256.+.ID=STRG.1chr1H_part_1 StringTie transcript72141732561000+.ID=STRG.1.1;Parent=STRG....
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卸载完成后，双击刚刚下载好的 Pycharm 2023.1.4 版本安装包，点击next 弹框会提示选择安装路径，可以选择默认路径，我这里选择的是D盘，路径确定好后点击 Next 按钮：然后，勾选 Create Desktop Shortcut 创建 Pycharm 桌面快捷启动方式，以方便后面快速打开 Pycharm，再点击 Next 按钮 :点击 Install 按钮，开始...
0 1 [a1, b1] {'a2': 0, 'b2': 1, 'c2': 2} 1 2 [c1] {'d2': 3, 'e2': 4} ### # a列是一个list类型的列,取list里的第一个值 df[df.id, df.a[0]] # b列是一个dict类型的列,取dict里的a2对应的值 df[df.id, df.b['a2']] ...
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bitmap=page.render(scale=1,# 72dpi resolutionrotation=0,# no additional rotation# ... further rendering options)pil_image=bitmap.to_pil()pil_image.show() Note, with the PIL adapter, it might be advantageous to useforce_bitmap_format=pdfium_c.FPDFBitmap_BGRA, rev_byteorder=Trueor maybe...