此为 Mathematica 7 文档,内容基于更早版本的 Wolfram 语言
查看最新文档(版本11.1)
Import/Export 导入/导出 格式

Bit

Uniform sequence of bits.
Binary data format.
  • Import can read any file as a sequence of single bits.
  • Export writes a list of 0s and 1s to a binary file.
  • Import["file", "Bit"] imports an arbitrary file as a sequence of bits, returning a packed array of 0s and 1s.
  • Export["file", list, "Bit"] exports a list of 0s and 1s to a binary sequence of bits.
  • Import["file", {"Bit", elem}] or Import["file", elem ] imports the specified element from file.
  • Import["file", {"Bit", {elem1, elem2, ...}}] imports multiple elements.
  • See the reference pages for full general information on Import and Export.
"Elements" elements and options available in this file
"Rules"full rules for each element and option
"Options"rules for options, properties, and settings
  • Data representation element:
"Data"list of single bits (0 or 1)
  • Import["file", {"Bit", n}] gives the n^(th) bit from file.
  • Export["file", list, "Bit"] pads list with zeros at the end if the number of bits to be exported is not a multiple of 8.
"HeaderBytes"0how many bytes to skip at the beginning of the file
Convert a text string to a list of bits:
In[1]:=
Click for copyable input
Out[1]=
Convert a list of 0s and 1s:
In[2]:=
Click for copyable input
Out[2]=
Export automatically pads with 0s if necessary:
In[3]:=
Click for copyable input
Out[3]=