Javascript 需要帮助理解为什么我'；m通过计算虚数得到非数字输出 函数想象数（实数，想象数）{ this.realNum=0； 这个值等于0； this.realNum=（typeof realNum=='undefined'）？this.realNum:parseFloat（realNum）； this.virginal=（typeof virginal=='undefined'）？this.virginal:parseFloat（virginal）； } ImaginaryNumbers.transform=函数（num）{ var想象数； ImageAryNumbers=（ImageAryNumbers的实例数）？num:ImageAryNumbers； ImageAryNumbers=（typeof num=='number'）？新ImageAryNumbers（num，0）：num； 返回图像数字； }; 功能显示\u复合体（re、im）{ 如果（im==“0”）返回“”+re； 如果（re==0）返回“”+im+'i'； 如果（im

我试图获得用户的输入，但我一直得到

NaN

+

NaNi

，结果如下。我不确定是什么问题。如果有任何帮助，我们将不胜感激。

您从输入中获取的值不是数字，而是字符串，因此请使用以获取输入的整数

目前的情况是：

function ImaginaryNumbers(realNum, imaginary) {
this.realNum = 0;
this.imaginary = 0;
this.realNum = (typeof realNum === 'undefined') ? this.realNum : parseFloat(realNum);
this.imaginary = (typeof imaginary === 'undefined') ? this.imaginary : parseFloat(imaginary);  
}

ImaginaryNumbers.transform = function(num) {
var imaginaryNumbers;
imaginaryNumbers = (num instanceof ImaginaryNumbers) ? num : imaginaryNumbers;
imaginaryNumbers = (typeof num === 'number') ? new ImaginaryNumbers(num, 0) : num;
return imaginaryNumbers;
};

function display_complex(re, im) {
if(im === '0') return '' + re;
if(re === 0) return '' + im + 'i';
if(im < 0) return '' + re + im + 'i';
return '' + re + '+' + im + 'i';
}

function addingComplexNumbers(first, second, third, fourth) {
var num1;
var num2;
num1 = ImaginaryNumbers.transform(document.getElementById("firstComplexNumber").value);
num2 = ImaginaryNumbers.transform(document.getElementById("secondComplexNumber").value);
num3 = ImaginaryNumbers.transform(document.getElementById("thirdComplexNumber").value);
num4 = ImaginaryNumbers.transform(document.getElementById("fourthComplexNumber").value);
var realNum = num1.realNum + num2.realNum + num3.realNum + num4.realNum;
var imaginary = num1.imaginary + num2.imaginary + num3.imaginary + num4.imaginary;
return document.getElementById("result8").innerHTML = display_complex(realNum, imaginary);
}

改为：

num1 = ImaginaryNumbers.transform(document.getElementById("firstComplexNumber").value);
num2 = ImaginaryNumbers.transform(document.getElementById("secondComplexNumber").value);
num3 = ImaginaryNumbers.transform(document.getElementById("thirdComplexNumber").value);
num4 = ImaginaryNumbers.transform(document.getElementById("fourthComplexNumber").value);

num1 = ImaginaryNumbers.transform(parseInt(document.getElementById("firstComplexNumber").value));
num2 = ImaginaryNumbers.transform(parseInt(document.getElementById("secondComplexNumber").value));
num3 = ImaginaryNumbers.transform(parseInt(document.getElementById("thirdComplexNumber").value));
num4 = ImaginaryNumbers.transform(parseInt(document.getElementById("fourthComplexNumber").value));