包括:GeneralC/C++Pre-processorcommandsOperatorPrecedenceEscapeSequencesASCIIChartDataTypesKeywordsStandardCLibraryStandardCI/OStandardCString&CharacterStandardCMathStandardCTime&DateStandardCMemoryOtherstandardCfunctionsAllCFunctionsC++C++I/OC++StringsC++StringStr