`var y = 0 ;
var x = 0;
function atm(num1, num2){
console.log((num1 - num2));
return num1 - num2 ;
}
var items =[1,2,3,4,5,6,7,8,9,10];
function vm(y, x){
if( atm(y , items[x]) < 0 ){
result = "U Do not have enough money to pay";
}
else if ( atm(y , items[x]) === 0 );{
result = "Ur money just matches the required paying fee";
}
if ( atm(y , items[x]) > 0 );{
result="U will reserve atm(y, items[x]) as a remainder";
}
}
vm(2, 3);`
**错误是它给了我3个答案,你可以看到: \\ -2
&#34; U没有足够的钱支付&#34;
&#34;你的钱只需支付所需的费用&#34;
-2
&#34; U将保留atm(y,items [x])作为余数&#34; \\
\\ 也是第3个结果&#34; result =&#34; U将保留atm(y,items [x])作为余数&#34; &#34;不会显示剩余部分
&#34; y支付你持有的金额&#34;
&#34; x转到数组&#34;
中的项目数vm是自动售货机,它应该做的是显示这些的答案
1-你没有足够的钱支付
2- Ur钱只需支付所需的费用
3-是他有更多钱,他会保留&#34; y - items [x]&#34;作为剩余部分当你收到我的错误时请写下错误和完整代码,有时候我会变得很难,我还是新的......
答案 0 :(得分:1)
首先,您不会从函数atm
返回任何内容,其次使用1参数而不是2来调用它,因此减法结果为NaN
例如,您只需使用1个参数
即可调用它if (atm(y - items[x]) > 0) ...
由于我不知道您的代码应该做什么,我无法为您解决,但我认为您应该能够在理解代码问题后做到这一点
答案 1 :(得分:1)
改变这个:
if( atm(y - items[x]) < 0 ){ ... }
else if ( atm(y - items[x]) === 0 );{ ... }
if ( atm(y - items[x]) > 0 );{ ... }
到此:
if( atm(y , items[x]) < 0 ){ ... }
else if ( atm(y , items[x]) == 0 ){ ... }
if ( atm(y , items[x]) > 0 ){ ... }
和此:
function atm(num1, num2){
console.log(num1 - num2);
}
到此:
function atm(num1, num2){
return (num1 - num2);
}
最终代码:
var y = 0 ;
var x = 0;
function atm(num1, num2){
return (num1 - num2);
}
var items =[1,2,3,4,5,6,7,8,9,10];
function vm(y, x){
if( atm(y , items[x]) < 0 ){
result = "U Do not have enough money to pay";
}
else if ( atm(y , items[x]) === 0 ){
result = "Ur money just matches the required paying fee";
}
if ( atm(y , items[x]) > 0 ){
result="U will reserve atm(y, items[x]) as a remainder";
}
}
答案 2 :(得分:1)
function atm(num1, num2)
最终应为return
。
atm(y , items[x]) < 0
代替atm(y - items[x]) < 0
var y = 0 ;
var x = 0;
function atm(num1, num2){
console.log((num1 - num2));
return num1 - num2
}
var items =[1,2,3,4,5,6,7,8,9,10]//Array.from({length:10},(v,k)=>k+1);
function vm(y, x){
if( atm(y , items[x]) < 0 ){
console.log('U Do not have enough money to pay');
}
else if ( atm(y , items[x]) === 0 );{
console.log("Ur money just matches the required paying fee");
}
if ( atm(y , items[x]) > 0 );{
console.log("U will reserve atm(y, items[x]) as a remainder");
}
}
vm(2, 1);
&#13;