我試圖想出一個辦法來優化下面的SQL查詢: select * from SOME_TABLE
where (col1 = 123 and col2 = 'abc')
or (col1 = 234 and col2 = 'cdf')
or (col1 = 755 and col2 = 'cvd') ---> I have around 2000 'OR' statements
我似乎在從Blender中的PNG圖像(使用python)中讀取像素RGBA值(特別是alpha值)時出現問題。 我做到以下幾點: for i in range(0, len(bpy.data.images["name_of_my_png"].pixels), 4):
print(bpy.data.images["name_of_my_png"].pixels[i:i+4]);
,