用vs编写c++重载函数maxl可以分别求两个整数，三个整数，两个三精度，两个双精度的最大值。
#include <cstdio>
int max(int x1, int x2){ return (x1>x2)?x1:x2;
int max(int x1,int x2,int x3){ int y = max(x1,x2); return (y>x3)? y:x3;}
double max(double f1, double f2){ return (f1>f2)?f1:f2;}
double max(double x1,double x2,double x3){ double y = max(x1,x2); return (y>x3)? y:x3;}
int main()
{ int x1=1, x2=3, x3=2;
printf("max(%d,%d)= %d\n", x1, x2, max(x1, x2));
printf("max(%d,%d, %d)= %d\n", x1, x2, x3,max(x1, x2,x3));
double d1=93.1, d2=99.1, d3=70.0;
printf("max(%.1lf,%.1lf)= %.1lf\n",d1, d2, max(d1, d2));
printf("max(%.1lf,%.1lf, %.1lf)= %.1lf\n", d1, d2,d3,max(d1, d2,d3));
return 0;
}
二、
c++编写
#include <iostream>
using namespace std;
int Max1(int a,int b){
if(a>b)
return a;
else
return b;
}
double Max1(double x,double y){
if(x>y)
return x;
else
return y;
}
int Max1(int a,int b,int c){
return Max1(a,Max1(b,c));
}
double Max1(double x,double y,double z){
return Max1(x,Max1(y,z));
}
int main(){
int a,b,c;
cout<<"please enter two integer:";
cin>>a>>b;
cout<<"there is the answer:"<<Max1(a,b)<<endl;
cout<<"please enter three integer:";
cin>>a>>b>>c;
cout<<"there is the answer:"<<Max1(a,b,c)<<endl;
double x,y,z;
cout<<"please enter two numder:";
cin>>x>>y;
cout<<"there is the answer:"<<Max1(x,y)<<endl;
cout<<"please enter three number:";
cin>>x>>y>>z;
cout<<"there is the answer:"<<Max1(x,y,z)<<endl;
return 0;
}
扩展资料：
C++运算符重载的相关规定如下：
（1）不能改变运算符的优先级；
（2）不能改变运算符的结合型；
（3）默认参数不能和重载的运算符一起使用；
（4）不能改变运算符的操作数的个数；
（5）不能创建新的运算符，只有已有运算符可以被重载；
（6）运算符作用于C++内部提供的数据类型时，原来含义保持不变。
参考资料来源：百度百科-重载函数
int max(int x1, int x2){ return (x1>x2)?x1:x2;
int max(int x1,int x2,int x3){ int y = max(x1,x2); return (y>x3)? y:x3;}
double max(double f1, double f2){ return (f1>f2)?f1:f2;}
double max(double x1,double x2,double x3){ double y = max(x1,x2); return (y>x3)? y:x3;}
int main()
{ int x1=1, x2=3, x3=2;
printf("max(%d,%d)= %d\n", x1, x2, max(x1, x2));
printf("max(%d,%d, %d)= %d\n", x1, x2, x3,max(x1, x2,x3));
double d1=93.1, d2=99.1, d3=70.0;
printf("max(%.1lf,%.1lf)= %.1lf\n",d1, d2, max(d1, d2));
printf("max(%.1lf,%.1lf, %.1lf)= %.1lf\n", d1, d2,d3,max(d1, d2,d3));
return 0;
}
第一行的max函数末尾加一个}号，sorry 原来漏掉了。
