unsigned+int+·¶Î§
C51Óï¾äunsigned+int+a;¶¨ÒåÎÞ·ûºÅÕûÐαäÁ¿a,Õ¼ÄÚ´æ+...
unsigned long int a,b;»ò unsigned long a,b;»ò unsigned int a,b; ¶¼¿ÉÒÔ¡£unsigned -- ÎÞ·ûºÅ¡£ long int -- ³¤ÕûÐÍ¡£ int -- ĬÈϳ¤ÕûÐÍ¡£¼ìÑé ³¤¶È ¿ÉÓà printf("%d ",sizeof(unsigned long int));printf
ÕûÐͱäÁ¿µÄȡֵ·¶Î§ºÍµçÄÔλÊýÓйØÂð?
intͨ³£ÊÇ32λµÄ£¬ËùÒÔINT_MAXͨ³£ÊÇ2^31 - 1£¬¼´ 2147483647£¨21¸öСĿ±ê£©£»unsigned intͨ³£Ò²ÊÇ32λµÄ£¬ËùÒÔUINT_MAXͨ³£ÊÇ2^32 - 1...
unsigned intÄÜ´æ´¢µÄÊý¾Ý·¶Î§ÊǶàÉÙ
16λϵͳÖÐÒ»¸öintÄÜ´æ´¢µÄÊý¾ÝµÄ·¶Î§Îª-32768~32767£¬¶øunsigned intÄÜ´æ´¢µÄÊý¾Ý·¶Î§ÔòÊÇ0~65535£¬ÔÚ¼ÆËã»úÖУ¬ÕûÊýÊÇÒÔ²¹ÂëÐÎʽ´æ·ÅµÄ¡£ÏµÍ³...
CÓïÑÔ¸÷¸öÊý¾ÝÀàÐÍȡֵ·¶Î§
ÕûÐÍ [signed]int -2147483648~+2147483648ÎÞ·ûºÅÕûÐÍunsigned[int] 0~4294967295¶ÌÕûÐÍ short [int] -32768~32768ÎÞ·ûºÅ¶ÌÕûÐÍunsigned short[int] 0~65535³¤ÕûÐÍ Long int...
C++ ÎÞ·ûºÅµÄÕûÐÍ·¶Î§²»ÊÇ0ÖÁ4294967295Âð?ΪʲôÔÚ...
ÎÞÂÛÊÇʲôÀàÐ͵ÄÊý×Ö£¬ÔÚÄÚ´æÀïÃæ¶¼ÊÇÒ»´®¶þ½øÖƶøÒÑ¡£ÄãÒª¸øprint·½·¨Ö¸¶¨´òÓ¡µÄÀàÐÍËý²Å»áÕý³£ÏÔʾŶ¡£¶øÄãÖ¸¶¨µÄÊÇÓзûºÅÕûÊý¡£
cÓïÑÔÖÐÕûÐÍÊý¾ÝµÄȡֵ·¶Î§ÊÇÔõôȷ¶¨µÄ???
unsigned int 16λ 0~2µÄ16´Î·½-1£¨¼´65535£©unsigned long 32λ 0~2µÄ32´Î·½-1£¨¼´4294967295£©¶ÔÓÚÓзûºÅÊý£¬ÓÉÓÚ·ûºÅλռÓÃһ룬²¢ÇÒ¸ºÊýÒªÓò¹Âë±í...
Çó½âunsigned intȡֵ·¶Î§×î´óÊý×ÖÓÐÎÊÌâ - ±à³ÌÓïÑÔ...
Ã÷°×ÁËÒ»µã£¬µ«ÎÒÓÐÁ©ÎÊÌ⣬ΪʲôËãint×î´ó·¶Î§%d¿ÉÒÔÊä³ö£¬»¹ÓÐsigned int¶¨ÒåµÄÊý¿ÉÒÔ³ÉΪ¸ºÊýÂð£¿
ÓзûºÅ¶ÌÕûÊýºÍÎÞ·ûºÅ¶ÌÕûÊýÇø±ð
Ö»ÒªÔÚÀàÐÍ·ûºÅ¼Ó unsigned¾ÍÊÇÎÞ·ûºÅÐÍ£¬IntÊÇÓзûºÅµÄ¡£Æäʵ˵°×Á˾ÍÊÇ£º¶¨Òå´ø·ûºÅÕûÊýµÄ£¬Ôò¿ÉÒÔ´æ´¢Õý¸ºÕûÊý£¬¶¨ÒåÎÞ·ûºÅÕûÊýµÄ£¬ÔòÖ»¿ÉÒÔ´æ´¢ÕýÕûÊý¡£
cÓïÑÔÖÐÕûÐͱäÁ¿µÄȡֵ·¶Î§ÊÇÔõôȡµÄ?
unsigned int u = 4294967295; //×î´óÖµ printf("%d", u); //ÒÔÓзûºÅµÄÐÎʽÊä³ö ½á¹ûÓ¦¸ÃÊÇu - 2^32 = -1¡£¿´µ½ÕâÀÄãÓ¦¸ÃÀÛÁË...
CÓïÑÔ»ù±¾ÕûÐ͵ÄÊý¾Ý·¶Î§Ê²Ã´Òâ˼
ËüµÄ·¶Î§Îª-32768~32767 ¶ÔÓÚÎÞ·ûºÅÊý£¬±È½Ï¼òµ¥£¬¸ù¾ÝÕ¼ÓõÄλÊý¿ÉÒÔÖ±½Ó¼ÆË㣺unsigned short 16λ 0~2µÄ16´Î·½-1£¨¼´65535£©unsigned int 16λ 0~2µÄ1...