clcclear;
Wavelength=input（‘Wavelength=?‘）;
Gamma?=?0.8;
IntensityMax?=?255;?

if?Wavelength?>=?380?&?Wavelength?<=?439
????Red?=?-（Wavelength?-?440）?/?（440?-?350）;
????Green?=?0.0;
????Blue?=?1.0;
elseif?Wavelength?>=?440?&?Wavelength?<=?489
????Red?=?0.0;
????Green?=?（Wavelength?-?440）?/?（490?-?440）;
????Blue?=?1.0;
elseif?Wavelength?>=?490?&?Wavelength?<=?509
????Red?=?0.0;
????Green?=?1.0;
????Blue?=?-（Wavelength?-?510）?/?（510?-?490）;
elseif?Wavelength?>=?510?&?Wavelength?<=?579
????Red?=?（Wavelength?-?510）?/?（580?-?510）;
????Green?=?1.0;
????Blue?=?0.0;
elseif?Wavelength?>=?580?&?Wavelength?<=?644
????Red?=?1.