面向51单片机的Keil uVision4基本数据类型简介
表1 Keil uVision4面向51单片机的基本数据类型各种属性一览表
qTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTrU类 别U 数 据 类 型 U长 度U 值 域 UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned char U1字节U0~255 UU字符型Usigned char U1字节U-128~+127 UU Uchar U1字节U-128~+127 UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned short intU2字节U0~65535 UU Usigned short int U2字节U-32768~+32767 UU Ushort int U2字节U-32768~+32767 UU UTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned short U2字节U0~65535 UU整 型Usigned short U2字节U-32768~+32767 UU Ushort U2字节U-32768~+32767 UU UTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned int U2字节U0~65535 UU Usigned int U2字节U-32768~+32767 UU Uint U2字节U-32768~+32767 UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned long int U4字节U0~4294967295 UU Usigned long int U4字节U-2147483648~+2147483647 UU Ulong int U4字节U-2147483648~+2147483647 UU长整型UTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Uunsigned long U4字节U0~4294967295 UU Usigned long U4字节U-2147483648~+2147483647 UU Ulong U4字节U-2147483648~+2147483647 UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Ufloat U4字节U±1.75494E-38~±3.402823E+38UU浮点型Udouble U4字节U±1.75494E-38~±3.402823E+38UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Ubit U1位 U0,1 UU位 型Usbit U1位 U0,1 UUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUU Usbit U1位 U0,1 UUSFR 型Usfr U1字节U0~255 UU Usfr16 U2字节U0~65535 UtTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTs
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