听说这个有用Thefollowingaretypedefsoffundamentalintegraltypesorextendedintegraltypes.signedtypeunsignedtypedescriptionintmax_tuintmax_tIntegertypewiththemaximumwidthsupported.int8_tuint8_tIntegertypewithawidthofexactly8,16,32,or64bits.Forsignedtypes,negativevaluesarerepresentedusing2