?????????????δ???
????int main()
????{
????unsigned char ch = 255;
????ch += 1;
????printf("%d "?? ch);
????return 0;
????}
?????????????0??
????????????????ch = 255????????Σ?????????洢?????000....??11111111?????000....??11111111+1 = ??000...??0001 00000000????????????λ??????????ch????????λ???0?????ch = 0???
????????????????????int short?? long????????????????????????????????????????
???????????
????1??????????????????????????????????????????????????С???????
????2?????????????????????????????????????????????????洢????????
????3???????double??????????float???????????????7λ??Ч?????????float??????洢?????32λ???С????????????Χ???????
?????????float????????double????????????????Чλ???????16λ???????????64λ?洢
????4???????????????????????????????????????????????????2??????????????????8λ???????????????8λ?С????????????
??????1??????????????????????????????????unsigned char??????????????????8λ?????????????8λ????8λ????
??????2??????????????????????з?????signed char???????????λ?0?????????????8λ???????????λ?1?????8λ???1.?????????????
????5???????int??short??long?????????????char??????????????8λ??????????char?????
?????????long????????????int???????????long???????е??16λ???????????????????????“???”
????6????unsigned int??????????long int??????????????????????????軔??λ??0????