投机技巧加一:float类型自动四舍五入,而且数据范围不大,float完全够
tips:该代码在C语言同样适用,因为我没using namespace std
#include <stdio.h> int main() { float a, b, c; int num; scanf("%d;%f,%f,%f", &num, &a, &b, &c); printf("The each subject score of No. %d is %.2f, %.2f, %.2f.", num, a, b,c); return 0; }