c++ 数据类型最大值/最小值

unsigned char min = 0 0x0
unsigned short min = 0 0x0
unsigned int min = 0 0x0
unsigned long min = 0 0x0
unsigned char max = 255 0xff
unsigned short max = 65535 0xffff
unsigned int max = 4294967295 0xffffffff
unsigned long max = 4294967295 0xffffffff
signed char max = 127 0x7f
signed short max = 32767 0x7fff
signed int max = 2147483647 0x7fffffff
signed long max = 2147483647 0x7fffffff
signed char min = -128 0xffffff80
signed short min = -32768 0xffff8000
signed int min = -2147483648 0x80000000
signed long min = -2147483648 0x80000000

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