2022-01-07 程式中的加減乘除 49 0 IT知識 紀錄加減乘除的使用 C# int firstNum = 9; int secondNum = 2; int sum = 0; sum = firstNum + secondNum; sum = firstNum - secondNum; sum = firstNum * secondNum; sum = firstNum / secondNum; IT知識加減乘除 回首頁