求助:这些字符串的操作(不能用函数)
请教:
unsigned char *Line1Content = "";
问题1:
unsigned char *MSG_SEGMENT = "123";
怎么把 MSG_SEGMENT 赋值给 Line1Content ?
问题2:
int a1 = 1;
int a2 = 345;
unsigned char *data1 = "";
unsigned char *data2 = "";
怎么把 a1 变为字符串赋值给 data1
怎么把 a2 变为字符串赋值给 data2
问题3:
unsigned char *Line1Content = "";
unsigned char *Line2Content = "123";
unsigned char *Line3Content = "456";
怎么把 Line2Content = Line2Content + Line3Content;
这要怎么写?
问题4
unsigned char *Line1Content = "";
unsigned char *Line2Content = "123";
把 Line2Content 赋值给 Line1Content
然后去想清空 Line1Content
怎么写?
因为是单片机程序,不能 copy 这些函数
谢谢!