作者jlovet ( )
看板MacDev
标题Re: [问题] 请问关於科学符号？
时间Sun Sep 5 01:48:27 2010
#import <Cocoa/Cocoa.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <string.h>
using namespace std;
int main(int argc, char *argv[])
{
double d = 0.00000000000000000000001;
stringstream ss;
string s;
ss<<fixed<<setprecision(1000)<<d;
ss>>s;
const char * ptr=s.c_str();
NSString * nss=[NSString stringWithCString:ptr];
NSLog(@"%@\n",nss);
return NSApplicationMain(argc, (const char **) argv);
}
要把附档名从.m改成.mm
setprecision() 看你想要变成几位数...
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