用标准c++实现string与各种类型之间的转换

{ ostringstream oss;//创建一个流 oss

{ stringstream stream; stream<>result;//向result中写入值 return result; }

 using namespace std;

using namespace boost;

int main(void)

try

{

//以下是内置类型向string转换的解决方案

//lexical_cast优势明显

int ival;

char cval;

ostringstream out_string;

string str0;

string str1;

ival = 100;

cval = 'w';

out_string <

str0 = out_string.str();

str1 = lexical_cast(ival) + lexical_cast(cval);

cout <

//以下是string向内置类型转换的解决方案

//几乎和stringstrem相比，lexical_cast就是类型安全的，

int itmpe;

char ctmpe;

str0 = "100k";

str1 = "100h";

istringstream in_string( str0 );

in_string >> itmpe >> ctmpe;

cout <

itmpe = lexical_cast(str1);

ctmpe = lexical_cast(str1);

system( "PAUSE" );

return 0;

} catch(bad_lexical_cast e)

{ cout <