此處表達式不超過萬。
注意的地方:1000,可以1001,即0的情況 (首,中,尾),11 ,12等,10 20 等情況!
此處未考慮負數情況,可以加以判斷,並且在開始加入負
#include <iostream>
#include <string>
#include <vector>
using namespace std;
string int_to_num(int num);
int main()
{
int num;
cin>>num;
cout<<int_to_num(num)<<endl;
return 0;
}
string int_to_num(int num)
{
string num_str[] = {"零","一","二","三","四","五","六","七","八","九"};
string base_str[] = {"","十","百","千","萬" };
string res;
int count = 0;
if(num == 0) return num_str[0];
int num_low[10];
while(num != 0)
{
int num_digit = num%10;
num = num/10;
num_low[count] = num_digit;
if(num_digit == 0 && count == 4 )//字母頭爲0
{
if(num_low[count-1] == 0)//高位連續爲0知道萬位!!
{
res = res.substr(num_str[0].size(),res.size()-num_str[0].size());
}
break;
}
if(num_digit == 0&&count >= 1 && num_low[count-1] != 0 )//防止1000,可以1001,即0的情況
{
res = num_str[num_digit]+res;
}
else if(num_digit == 1&&count == 1&&num == 0)//防止11,12等情況
{
res = base_str[num_digit]+res;
}
else
{
if(num_digit > 0)//必須大於0
{
res = num_str[num_digit]+base_str[count]+res;
}
}
count++;
if(count >= 5)break;
}
return res;
}
如果代碼有bug,希望各位指正,謝謝。