If%是什么意思呢？
#include <stdio.h>
int main()
{
??? char c = 'a';
??? int n = c;????? //將c賦值給n
??? float f = c;?? //將c賦值給f
??? double d = c;? //將c賦值給d
??? printf("%d\n",n);
??? printf("%f\n",f);
??? printf("%lf\n",d);
??? return 0;???
}
慕慕8283748
2018-10-10
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2018-10-10
%lf是輸出double類型的變量；