Tag: c51

printf（）导致乱码

我有这个代码： unsigned char *command = “0000”; unsigned char foo = (hex_char_to_int(command[0]) << 4) | hex_char_to_int(command[1]); unsigned char bar = (hex_char_to_int(command[2]) << 4) | hex_char_to_int(command[3]); printf("foo: %02x, bar: %02x\r\n", foo, bar); 它使用此function： unsigned char hex_char_to_int(unsigned char ch) { switch (ch){ case ‘0’: return 0; case ‘1’: return 1; case ‘2’: return 2; case ‘3’: return 3; […]