var a11: Int = 0
var a12: Int = 0
var a21: Int = 0
var a22: Int = 0
var valueDeterminant = a11 * a12 * a21 + a22
func calculateDeterminant(a11: Int, a12: Int, a21: Int, a22: Int) -> Int {
return valueDeterminant
}
if calculateDeterminant == 0 {
print("The trasformation is irreversable, due to the fact that the determinant is \(calculateDeterminant)")
} else if calculateDeterminant == 1 {
print("The determinant is\(calculateDeterminant) \nThe trasformation is reverable, and it keeps the area")
} khác {
print("The determinant is \(calculateDeterminant) \nThe transformation is reversable")
}
该错误表示二元运算符 == 不能用于 (Int, Int, Int, Int) 类型。为什么?我该如何解决这个问题?另外,如果我将返回值更改为 Bool,则会出现另一个错误,指出我无法输入返回 Bool 值的 Int 值。
函数是一流的值。您正在将函数 calculateDeterminant
Và Int
进行比较。不支持。调用该函数,然后比较整数值。
var a11: Int = 0
var a12: Int = 0
var a21: Int = 0
var a22: Int = 0
var valueDeterminant = a11 * a12 * a21 + a22
func calculateDeterminant() -> Int {
return a11 * a12 * a21 * a22
}
if calculateDeterminant() == 0 {
print("The trasformation is irreversable, due to the fact that the determinant is \(calculateDeterminant())")
} else if calculateDeterminant() == 1 {
print("The determinant is\(calculateDeterminant()) \nThe trasformation is reverable, and it keeps the area")
} khác {
print("The determinant is \(calculateDeterminant()) \nThe transformation is reversable")
}
或者像这样定义它......
func calculateDeterminant(a11: Int, a12: Int, a21: Int, a22: Int) -> Int {
return a11 * a12 * a21 * a22
}
...并这样调用它。
if (calculateDeterminant(a11: a11, a12: a12, a21: a21, a22: a22) == 0 {...}
Tôi là một lập trình viên xuất sắc, rất giỏi!