[mw_shl_code=c,true]void Check_GPIO_PutMessage(char*num) { char* O1;char* O2;char* O3;char* O4;char* O5; char sbuf[20]={0},sbuf1[200]={0}; char N[12]={0}; uint8_t len,i; for(i=0;i<5;i++) {N[i*2+1]=num[i*2];N[i*2]=num[i*2+1];} N[11]=num[10];N[10]='F'; SendAT_PrintBack( "AT+CMGF=0 ", "OK", sizeof("AT+CMGF=0 "),100); delay_ms(200); strcat(sbuf,"AT+CMGS=35 "); SendAT_PrintBack( sbuf, ">", sizeof(sbuf),100); delay_ms(200); strcat(sbuf1,"0011000D9168"); strcat(sbuf1,N); strcat(sbuf1,"00080014"); strcat(sbuf1,O1);strcat(sbuf1,O2);strcat(sbuf1,O3);strcat(sbuf1,O4);strcat(sbuf1,O5); len=strlen(sbuf1); sbuf1[len]=0x1a; sbuf1[len+1]=0 }[/mw_shl_code] 当我进行单步调试时调试到strcat(sbuf1,N)时程序就进入死循环了，跳到这个死循环void HardFault_Handler(void)，我感觉strcat函数用的没错啊，就是简单的链接字符串。实在没搞明白，求大神帮忙啊