动态内存的申请与释放必须配对，防止内存泄漏

动态内存的申请与释放必须配对，防止内存泄漏。

#include <iostream>
#include<stdio.h>
#include <string.h>

//main()函数
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int main(int argc, char** argv) {
        //声明变量和数组
    char  buffer[200], s[] = "computer", c = 'l';
    int   i = 35, j;
    float fp = 1.7320534f;

    //格式化输出到buffer
    j  = sprintf( buffer,     "	String:    %s
", s );
    j += sprintf( buffer + j, "	Character: %c
", c );
    j += sprintf( buffer + j, "	Integer:   %d
", i );
    j += sprintf( buffer + j, "	Real:      %f
", fp );

    cout<<"Output:"<<endl;
    cout<<buffer;
    cout<<"character count ="<<j<<endl;
    return 0;
}