keil中出现重复定义，我只在.H中定义，其他地方没有了，他还是显示重复定义，只在controlword.H中定义

Build target 'Target 1' linking... *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS SYMBOL: FREQUENCY_OUT MODULE: controlword.obj (CONTROLWORD) *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS SYMBOL: CONTROL_WORD MODULE: controlword.obj (CONTROLWORD) *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS SYMBOL: CON_WORD_2 MODULE: controlword.obj (CONTROLWORD) *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS SYMBOL: CON_WORD_1 MODULE: controlword.obj (CONTROLWORD) *** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS SEGMENT: ?PR?_DISPLAY_CHAR?LCD1602 Program Size: data=61.0 xdata=0 code=2658 Target not created

Searching for 'FREQUENCY_OUT'... .\controlword.c(15): Calculate_Control_Word(long uint Frequency_Out) .\controlword.c(17): Con_Word_1 = Frequency_Out * 42; .\controlword.c(18): Con_Word_2 = Frequency_Out * 0.9423727466; //100M .\main.c(16): { a = Frequency_Out % 10; .\main.c(17): b = (Frequency_Out % 100)/10; .\main.c(18): c = (Frequency_Out % 1000)/100; .\main.c(19): d = (Frequency_Out % 10000)/1000; .\main.c(20): e = (Frequency_Out % 100000)/10000; .\main.c(21): f = (Frequency_Out % 1000000)/100000; .\main.c(22): g = (Frequency_Out % 10000000)/1000000; .\main.c(23): h = (Frequency_Out % 100000000)/10000000; .\main.c(47): Frequency_Out = 0;//开机默认的频率输出值； .\main.c(48): Calculate_Control_Word(Frequency_Out);//根据设置的频率换算成将要送入 AD9850 中 .\main.c(58): { Frequency_Out=Frequency_Out+10 ; .\main.c(61): { Frequency_Out=Frequency_Out+100;

.\main.c(64): { Frequency_Out=Frequency_Out+1000;

.\main.c(67): { Frequency_Out=Frequency_Out+10000 ; .\main.c(70): { Frequency_Out=Frequency_Out-10 ; .\main.c(73): { Frequency_Out=Frequency_Out-100 ; .\main.c(76): { Frequency_Out=Frequency_Out-1000 ; .\main.c(79): { Frequency_Out=Frequency_Out-10000;

.\main.c(86): Calculate_Control_Word(Frequency_Out);//根据设置的频率换算成将要送入 AD9850 中

.\controlword.h(25): Calculate_Control_Word(long uint Frequency_Out); 24 occurrence(s) have been found.