尊敬的先生
我尝试使用 printf ()打印到控制台窗口,但以下两个代码之间存在差异。
我想用 printf 打印变量的值、您知道为什么显示0吗?
uint32_t i = 200;
printf ("\ n \ rvalue i =% d \ n"、i);
printf ("value =% d \ n"、200);


此致
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
尊敬的先生
我尝试使用 printf ()打印到控制台窗口,但以下两个代码之间存在差异。
我想用 printf 打印变量的值、您知道为什么显示0吗?
uint32_t i = 200;
printf ("\ n \ rvalue i =% d \ n"、i);
printf ("value =% d \ n"、200);


此致
您好!
当我如下面代码中所示更改变量并执行它时、结果会有所不同。
请告诉我产生此结果的原因。
uint32_t i = 200;
printf ("\n \rvalue i =%d \n"、i);
printf ("value =%d \n"、200);
unsigned char ii = 200;
printf ("\n\rvalue ii =%d \n"、ii);
无符号短整型 iii = 200;
printf ("\n\rvalue iii =%d \n"、iii);
长 IIIi = 200;
printf ("\n \r 值 IIIi =%d \n"、IIIi);
unsigned long IIIII = 200;
printf ("\n \rvalue IIIII =%d \n"、IIIII);
int iiiiiiiiiiiiii=
printf ("\n \rvalue iiiiii =%d \n"、iiiiii);

uint32_t i = 12345678;
printf ("\n \ruint32_t i =%d \n"、i);
printf ("\n \runsigned int i =%d \n"、(unsigned int) i);
printf ("\n \r int i =%d \n"、(int) i);
printf ("\n \runsigned char i =%d \n"、(unsigned char) i);
printf ("\n \r char i =%d \n"、(char) i);
printf ("\n \runsigned short i =%d \n"、(unsigned short) i);
printf ("\n \r short i =%d \n"、(short) i);
printf ("\n \runsigned long i =%d \n"、(unsigned long) i);
printf ("\n \r long i =%d \n"、(long) i);
printf ("\n\r float i =%d \n"、(float) i);
运行上述代码会导致以下结果:
uint32_t i =188
unsigned int i =24910
int i =24910
unsigned char i =24910
字符 i =24910
无符号短整型 I =24910
短接 I =24910
无符号长整型 I =188
长 I =188
float I =16743
12345678->0xBC614E
24910->0x614E
188->0xBC
此致
请在此链接中浏览有关 printf 的提示:
https://software-dl.ti.com/ccs/esd/documents/sdto_cgt_tips_for_using_printf.html
https://software-dl.ti.com/ccs/esd/documents/c2000_c28x-code-generation-tips-and-tricks.html
谢谢、此致、
桑托什