Objective c Printf不产生任何输出
我有以下代码:Objective c Printf不产生任何输出,objective-c,printf,Objective C,Printf,我有以下代码: int main(int argc, char *argv[]) { Calculator* calc; calc = [[Calculator alloc]init]; float answer = [calc add:4.0 to:3.0]; printf("Answer is:", answer); return NSApplicationMain(argc, (const char **) argv); } 但它不起作用。我知道
int main(int argc, char *argv[])
{
Calculator* calc;
calc = [[Calculator alloc]init];
float answer = [calc add:4.0 to:3.0];
printf("Answer is:", answer);
return NSApplicationMain(argc, (const char **) argv);
}
但它不起作用。我知道我的printf
参数是错误的,但我不确定如何修复它们。像这样使用:
printf("Answer is: %f", answer);
这样使用:
printf("Answer is: %f", answer);