使用 if else 将数字转换为单词 [英] Converting number into words using if else

问题描述

我是 C++ 的初学者.我写了一个程序来将数字转换为单词.对于 11-19 之间的数字和这样的数字，20、30、40、50、60、70、80、90，我得到了错误的输出.我还尝试在最后两个 if 语句之间添加 else 语句，这样即使第一个 if 为真，它也不会执行所有 if 语句，但它给我一个错误，即else without a previous if".

I am a beginner in c++. I have written a program to convert numbers into words. I am getting wrong output for numbers between 11-19 and numbers like this, 20,30,40,50,60,70,80,90. I also tried to add else statement between last two if statements so that It does not execute all the if statements even if the first if is true but it gives me an error that "else without a previous if".

//This program converts number into words
#include<iostream>
using namespace std;
main()
{
    int number,unit,ten;
    cout<<"Please enter any number between 0-99: ";
    cin>>number;
    ten=number/10;
    unit=number%10;
    if(number<0 | number>99)
        cout<<"Number is out of range";
    if(number>=11 && number <=19);
    {
        if(number==11) cout<<"eleven"; 
        if(number==12) cout<<"twelve";
        if(number==13) cout<<"thirteen"; 
        if(number==14) cout<<"fourteen";
        if(number==15) cout<<"fifteen";
        if(number==16) cout<<"sixteen";
        if(number==17) cout<<"seventeen";
        if(number==18) cout<<"eighteen";
        if(number==19) cout<<"ninteen";
    }
    if(ten>=2 && ten<=9)    
    {   
        if(ten==1) cout<<"ten";
        if(ten==2) cout<<"twenty";
        if(ten==3) cout<<"thirty";
        if(ten==4) cout<<"fourty";
        if(ten==5) cout<<"fifty";
        if(ten==6) cout<<"sixty";
        if(ten==7) cout<<"seventy";
        if(ten==8) cout<<"eighty";
        if(ten==9) cout<<"ninty";
    }
    if(unit>=0 && unit <=9)
    {
        if(unit==0) cout<<" zero";
        if(unit==1) cout<<" one";
        if(unit==2) cout<<" two";
        if(unit==3) cout<<" three";
        if(unit==4) cout<<" four";
        if(unit==5) cout<<" five";
        if(unit==6) cout<<" six";
        if(unit==7) cout<<" seven";
        if(unit==8) cout<<" eight";
        if(unit==9) cout<<" nine";
    }
}

输出 1:-

Please enter any number between 0-99: 12
twelve two

输出 2:-

Please enter any number between 0-99: 30
thirty zero

推荐答案

您在第二个 if 之后有一个分号 ;.而且，您应该使用 || 而不是 |.你也应该排除 ten==1 的情况.

You had a semicolon ; after the second if. And also, you should use || instead of |. Also you should exlude the case when ten==1.

//This program converts number into words
#include<iostream>
using namespace std;
main()
{
    int number,unit,ten;
    cout<<"Please enter any number between 0-99: ";
    cin>>number;
    ten=number/10;
    unit=number%10;
    if(number<0 || number>99)
    {
        cout<<"Number is out of range";
    }
    if(ten == 1)
    {
        if(number==10) cout<<"ten"; 
        if(number==11) cout<<"eleven"; 
        if(number==12) cout<<"twelve";
        if(number==13) cout<<"thirteen"; 
        if(number==14) cout<<"fourteen";
        if(number==15) cout<<"fifteen";
        if(number==16) cout<<"sixteen";
        if(number==17) cout<<"seventeen";
        if(number==18) cout<<"eighteen";
        if(number==19) cout<<"ninteen";
    }
    else {   
        if(ten==2) cout<<"twenty";
        if(ten==3) cout<<"thirty";
        if(ten==4) cout<<"fourty";
        if(ten==5) cout<<"fifty";
        if(ten==6) cout<<"sixty";
        if(ten==7) cout<<"seventy";
        if(ten==8) cout<<"eighty";
        if(ten==9) cout<<"ninty";

        // ****
        if(unit==0 && ten ==0) cout<<" zero";
        if(unit==1) cout<<" one";
        if(unit==2) cout<<" two";
        if(unit==3) cout<<" three";
        if(unit==4) cout<<" four";
        if(unit==5) cout<<" five";
        if(unit==6) cout<<" six";
        if(unit==7) cout<<" seven";
        if(unit==8) cout<<" eight";
        if(unit==9) cout<<" nine";
    }
}

所有情况的输出:

Please enter any number between 0-99: -1
Number is out of range

Please enter any number between 0-99: 0
 zero

Please enter any number between 0-99: 1
 one

Please enter any number between 0-99: 2
 two

Please enter any number between 0-99: 3
 three

Please enter any number between 0-99: 4
 four

Please enter any number between 0-99: 5
 five

Please enter any number between 0-99: 6
 six

Please enter any number between 0-99: 7
 seven

Please enter any number between 0-99: 8
 eight

Please enter any number between 0-99: 9
 nine

Please enter any number between 0-99: 10
ten

Please enter any number between 0-99: 11
eleven

Please enter any number between 0-99: 12
twelve

Please enter any number between 0-99: 13
thirteen

Please enter any number between 0-99: 14
fourteen

Please enter any number between 0-99: 15
fifteen

Please enter any number between 0-99: 16
sixteen

Please enter any number between 0-99: 17
seventeen

Please enter any number between 0-99: 18
eighteen

Please enter any number between 0-99: 19
ninteen

Please enter any number between 0-99: 20
twenty

Please enter any number between 0-99: 21
twenty one

Please enter any number between 0-99: 22
twenty two

Please enter any number between 0-99: 23
twenty three

Please enter any number between 0-99: 24
twenty four

Please enter any number between 0-99: 25
twenty five

Please enter any number between 0-99: 26
twenty six

Please enter any number between 0-99: 27
twenty seven

Please enter any number between 0-99: 28
twenty eight

Please enter any number between 0-99: 29
twenty nine

Please enter any number between 0-99: 30
thirty

Please enter any number between 0-99: 31
thirty one

Please enter any number between 0-99: 32
thirty two

Please enter any number between 0-99: 33
thirty three

Please enter any number between 0-99: 34
thirty four

Please enter any number between 0-99: 35
thirty five

Please enter any number between 0-99: 36
thirty six

Please enter any number between 0-99: 37
thirty seven

Please enter any number between 0-99: 38
thirty eight

Please enter any number between 0-99: 39
thirty nine

Please enter any number between 0-99: 40
fourty

Please enter any number between 0-99: 41
fourty one

Please enter any number between 0-99: 42
fourty two

Please enter any number between 0-99: 43
fourty three

Please enter any number between 0-99: 44
fourty four

Please enter any number between 0-99: 45
fourty five

Please enter any number between 0-99: 46
fourty six

Please enter any number between 0-99: 47
fourty seven

Please enter any number between 0-99: 48
fourty eight

Please enter any number between 0-99: 49
fourty nine

Please enter any number between 0-99: 50
fifty

Please enter any number between 0-99: 51
fifty one

Please enter any number between 0-99: 52
fifty two

Please enter any number between 0-99: 53
fifty three

Please enter any number between 0-99: 54
fifty four

Please enter any number between 0-99: 55
fifty five

Please enter any number between 0-99: 56
fifty six

Please enter any number between 0-99: 57
fifty seven

Please enter any number between 0-99: 58
fifty eight

Please enter any number between 0-99: 59
fifty nine

Please enter any number between 0-99: 60
sixty

Please enter any number between 0-99: 61
sixty one

Please enter any number between 0-99: 62
sixty two

Please enter any number between 0-99: 63
sixty three

Please enter any number between 0-99: 64
sixty four

Please enter any number between 0-99: 65
sixty five

Please enter any number between 0-99: 66
sixty six

Please enter any number between 0-99: 67
sixty seven

Please enter any number between 0-99: 68
sixty eight

Please enter any number between 0-99: 69
sixty nine

Please enter any number between 0-99: 70
seventy

Please enter any number between 0-99: 71
seventy one

Please enter any number between 0-99: 72
seventy two

Please enter any number between 0-99: 73
seventy three

Please enter any number between 0-99: 74
seventy four

Please enter any number between 0-99: 75
seventy five

Please enter any number between 0-99: 76
seventy six

Please enter any number between 0-99: 77
seventy seven

Please enter any number between 0-99: 78
seventy eight

Please enter any number between 0-99: 79
seventy nine

Please enter any number between 0-99: 80
eighty

Please enter any number between 0-99: 81
eighty one

Please enter any number between 0-99: 82
eighty two

Please enter any number between 0-99: 83
eighty three

Please enter any number between 0-99: 84
eighty four

Please enter any number between 0-99: 85
eighty five

Please enter any number between 0-99: 86
eighty six

Please enter any number between 0-99: 87
eighty seven

Please enter any number between 0-99: 88
eighty eight

Please enter any number between 0-99: 89
eighty nine

Please enter any number between 0-99: 90
ninty

Please enter any number between 0-99: 91
ninty one

Please enter any number between 0-99: 92
ninty two

Please enter any number between 0-99: 93
ninty three

Please enter any number between 0-99: 94
ninty four

Please enter any number between 0-99: 95
ninty five

Please enter any number between 0-99: 96
ninty six

Please enter any number between 0-99: 97
ninty seven

Please enter any number between 0-99: 98
ninty eight

Please enter any number between 0-99: 99
ninty nine

Please enter any number between 0-99: 100
Number is out of range

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