求一句句子中英文单词的个数，要求句子从键盘输入，C++写

[musicaboy]

比如说输入i love you 则输出3

[lzr4304061988012]

#include <iostream>
#include <string>
#include <vector>
#include <sstream>
using namespace std;

void main()
{
	string line,word;
	vector <string> vec;
	while(getline(cin,line))
	{
		istringstream in(line);
		while(in>>word)
			vec.push_back(word);
	}
	cout<<vec.size()<<endl;
}


i love you
you love me
^Z
6
请按任意键继续. . .

[xqls_xqls]

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

void main()
{
char p[100];
int m = 1,k = 0;
cin.getline(p,100);
k = strlen(p);
for(int i=0;i < k;i++)
if(p[i]== ' ')
m++;
cout<<"单词的个数为："<<m<<endl;
}

[jay的Fans]

#include <iostream>
#include <string>
#include <sstream>
using namespace std;

int main()
{
string line,word;
int cnt;
cnt = 0;
while(getline(cin,line))
{
istringstream in(line);
while(in>>word)
++cnt;
}
cout << cnt << endl;

return 0;
}

[jy01807853]

//楼主你的意思是这个吗?
#include <stdio.h>
#include <string.h>

int main()
{

	char       src[] = "我爱CSDN程序员之家"; //我不支持中文输入
        
	//scanf("%c", src);

	char      *psrc = src;
	size_t    occurs = 0;

	while (*psrc)
	{
		if ((unsigned char)*psrc > 0x80)
		{
                       ++occurs;
		}

		++psrc;
	}
        
	int      different = strlen(src) - occurs;
	printf("中文单词个数: %d\n", occurs / 2);
	printf("英文单词个数: %d\n", different);

	return      0;
}

[Silitex]

测试左移右移符号：>>, <<

[Silitex]

a,o，为什么左移符号里面一定有一个空格呢？