简单百分比计算

Question

请查看以下代码并告诉我为什么skillPercentange始终为零：

NSInteger skillPercentange;
skillPercentange=totalCorrectAns * reloader/100;

Answer 1

我不确切地知道你想做什么，但我会试着给你看一个演示：

int allQuestions = 50;
int correctAnswers = 25;
float precentage = (100 * correctAnswers)/allQuestions;
NSLog("%i of %i questions answered correctly. That are %.1f percent!",correctAnswers,allQuestions,precentage);

  

输出：“50个问题中有25个问题正确回答。这是50.0％！”

Answer 2

float skillPercentange;
skillPercentange=(totalCorrectAns * reloader)/100;

或

skillPercentange= totalCorrectAns * (reloader/100);

根据你的公式。

NSLog(@"skillPercentange=0.1f",skillPercentange);

Answer 3

NSInteger skillPercentange;
skillPercentange = 100 * totalCorrectAns / reloader;