有关C++的问题。。。

请问如何用 C++ hidden characters 呢？
例如：

cout 的 value 是 137.5,
但我只要display '5',
我不要display 137.。
有甚么办法吗？   

[ 本帖最后由 回归者 于 22-8-2006 02:30 PM 编辑 ]

ekineng

#include <iostream>
#include <stdlib.h>

using namespace std;

int main()
{
   double number = 137.5;
   char myword[10];
   string test;
   //convert double to string
   gcvt(number,4,myword);
   //Scans string1 character by character, returning a pointer to the first character
   //that matches with any of the characters in string2
   test = strpbrk(myword,"5");
   cout<<test;
   system("Pause");
   return 0 ;
}

evo9

不能哦....
会有这个error....
c:\documents and settings\david\desktop\testing program\double convert string.cpp(16) : error C2679: binary '<<' : no operator defined which takes a right-hand operand of type 'class std::basic_string<char,struct std::char_traits<char>,class std::al