％c转换说明符将变量的内容输出为单个字符。％d说明符将其解释为整数。
#include <stdio.h>
int main(void)
{
char first = 'T';
char second = 63;
printf(The first example as a letter looks like this - %c\n, first);
printf(The first example as a number looks like this - %d\n, first);
printf(The second example as a letter looks like this - %c\n, second);
printf(The second example as a number looks like this - %d\n, second);
return 0;
}
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