簡單percentange計算

Question

請看看下面的代碼，並告訴我，爲什麼skillPercentange始終爲零：

NSInteger skillPercentange; 
skillPercentange=totalCorrectAns * reloader/100; 

Answer 1

我並不確切地知道你想要做什麼，但我會盡力給你看演示：

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); 

輸出： 「50個問題25回答正確即50.0％的！」

Answer 2

NSInteger skillPercentange; 
skillPercentange = 100 * totalCorrectAns/reloader; 

Answer 3

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

或

skillPercentange= totalCorrectAns * (reloader/100); 

根據什麼是你的公式。

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