整形数据取值范围(int、long、long long)

类型 范围
unsigned int 0~4294967295
int -2147483648~2147483647
unsigned long 0~4294967295
long -2147483648~2147483647
unsigned long long 0 ~ 18446744073709551615
long long -9223372036854775808~9223372036854775807
__int64 -9223372036854775808~9223372036854775807

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