"a" :Write-only. Starts at end of file if file exists; otherwise, creates a new file for writing. "a+" :Read-write. Starts at end of file if file exists; otherwise, creates a new file for reading and writing. "b" :(DOS/Windows only.) Binary file mode. May appear with any of...
writeexcel 写入跨平台的Excel二进制文件。 描述 该库是从Perl的Spreadsheet :: WriteExcel模块转换而来的。 / 原始说明如下: The Spreadsheet::WriteExcel module can be used to create a cross- platform Excel binary file. Multiple worksheets can be added to a workbook and formatting can be applied ...
classRectangle<BinData::Recordendian:littleuint16:lenstring:name,:read_length=>:lenuint32:widthuint32:heightendio=File.open(...)r=Rectangle.read(io)puts"Rectangle#{r.name}is#{r.width}x#{r.height}" BinData provides adeclarativeway to read and write structured binary data. ...
# bad!something# good!something No Space inside Range Literals # bad1..3'a'...'z'# good1..3'a'...'z' >whenTime.now.hour>21casewhensong.name=='Misty'puts'Not again!'whensong.duration>120puts'Too long!'whenTime.now.hour>21puts"It's too late"elsesong.playend A Bit of History...
0b1011011 # binary ?b # character code for 'b' ?\n # code for a newline (0x0a) 12345678901234567890 # Bignum 1. 2. 3. 4. 5. 6. 7. 8. 9. Ruby中的浮点数: 1023.4 # floating point value 1.0e6 # scientific notation 4E20 # dot not required ...
FileUtils.mkdir("#{Rails.root}/public/upload") unless File.exist?("#{Rails.root}/public/upload")#wb 表示通过二进制方式写,可以保证文件不损坏File.open("#{Rails.root}/public/upload/#{filename}","wb") do |f|f.write(file.read)
函数ProsessFile:功能:STL文件读取prepareModel、生成切片数据processSliceData、生成Gcode writeGcode。(log函数现在滤去,单独研究) 函数prepareModel:功能:STL文件读取、优化STL文件、生成LayerParts。涉及到的类:class SimpleModel、class SimpleVolume、class OptimizedModel、cura class Slicer、cura class SupportStorage。
-Werror=write-strings \ -Werror=old-style-definition \ -Wimplicit-fallthrough=0 \ -Wmissing-noreturn \ -Wno-cast-function-type \ -Wno-constant-logical-operand \ -Wno-long-long \ -Wno-missing-field-initializers \ -Wno-overlength-strings \ ...
-Werror=write-strings \ -Wimplicit-fallthrough=0 \ -Wmissing-noreturn \ -Wno-cast-function-type \ -Wno-constant-logical-operand \ -Wno-long-long \ -Wno-missing-field-initializers \ -Wno-overlength-strings \ -Wno-packed-bitfield-compat \ ...
``a+'' Read-write, starts at end of file if file exists, otherwise creates a new file for reading and writing. ``b'' (DOS/Windows only) Binary file mode (may appear with any of the key letters listed above). 打开文件及文件内容: ...