在输入输出字符串时scanf(),printf()和gets(),puts()的区别浅谈

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

using namespace std;

int main()
{
  //freopen("//home//jack//jack.txt","r",stdin);
  char str[80];
  char ch;
  cout<<"1、请输入一个没有空格的字符串:"<<endl;
  scanf("%s",str);
  cout<<"用scanf(\"%s\",str)输入的字符串为:"<<str<<endl;
  cout<<"再输入一次作为对比:"<<endl;
  while((ch=getchar())!='\n'&&ch!=EOF);
  gets(str);
  cout<<"用gets(str)输入的字符串为:"<<str<<endl;
  cout<<"2、请输入一个有空格的字符串:"<<endl;
  scanf("%s",str);
  cout<<"用scanf(\"%s\",str)输入的字符串为:"<<str<<endl;
  cout<<"再输入一次作为对比:"<<endl;
  while((ch=getchar())!='\n'&&ch!=EOF);
  gets(str);
  cout<<"用gets(str)输入的字符串为:"<<str<<endl;
  return 0;
}

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

using namespace std;

int main()
{
  //freopen("//home//jack//jack.txt","r",stdin);
  char str1[80]="hello";
  cout<<"用printf(\"%s\",str1)输出的字符串为：";
  printf("%s",str1);
  cout<<"用puts(str1)输出的字符串为: ";
  puts(str1);
  char str2[80]="hello world";
  cout<<"用printf(\"%s\",str2)输出的字符串为: ";
  printf("%s",str2);
  cout<<"用puts(str2)输出的字符串为: ";
  puts(str2);
  return 0;
}