为什么不能实现啊?最后显示的都为0!!!!!!!

[DTCPHQ]

#include <iostream>
using namespace std;
int main ()
{
char a[100];
int i=0;
int C=0,c=0,n=0,o=0;
bool condition = true;
while(condition)
{
if(a[i]=getchar()=='\n')
{
condition = false;
}
i++;
}
for(int j=0;j !='\0';j++)
{
if(a[j]<=90 && a[j]>=65)
{
C++;
}
else if(a[j]<=122 && a[j]>=97)
{
c++;
}
else if(a[j]<=57 && a[j]>=48)
{
n++;
}
else
o++;
}
cout<<"there are "<<C<<" Capitals"<<endl;
cout<<"there are "<<c<<" small letters"<<endl;
cout<<"there are "<<n<<" numbers"<<endl;
cout<<"there are "<<o<<" others"<<endl;
return 0;
}

[baihacker]

#include  <iostream> 
using namespace std; 
int main () 
{ 
	char a[100]; 
	int i=0; 
	int C=0,c=0,n=0,o=0; 
	bool condition = true; 
	while(condition) 
	{ 
		if((a[i]=getchar())=='\n') //这里有问题
		{ 
			condition = false; 
		} 
		i++; 
	} 
	for(int j=0;a[j]!='\n';j++) //条件
	{ 
		if(a[j] <=90 && a[j]>=65) 
		{ 
			C++; 
		} 
		else if(a[j] <=122 && a[j]>=97) 
		{ 
			c++; 
		} 
		else if(a[j] <=57 && a[j]>=48) 
		{ 
			n++; 
		} 
		else  
			o++; 
	} 
	cout <<"there are " <<C <<" Capitals" <<endl; 
	cout <<"there are " <<c <<" small letters" <<endl; 
	cout <<"there are " <<n <<" numbers" <<endl; 
	cout <<"there are " <<o <<" others" <<endl; 
	return 0; 
}

[baihacker]

#include  <iostream> 
using namespace std; 
int main () 
{ 
	char a[100]; 
	int i=0; 
	int C=0,c=0,n=0,o=0; 
	bool condition = true; 
	while(condition) 
	{ 
		if((a[i]=getchar())=='\n') //这里有问题
		{ 
			condition = false; 
		} 
		i++; 
	} 
	for(int j=0;a[j]!='\n';j++) //条件
	{ 
		if(a[j] <=90 && a[j]>=65) 
		{ 
			C++; 
		} 
		else if(a[j] <=122 && a[j]>=97) 
		{ 
			c++; 
		} 
		else if(a[j] <=57 && a[j]>=48) 
		{ 
			n++; 
		} 
		else  
			o++; 
	} 
	cout <<"there are " <<C <<" Capitals" <<endl; 
	cout <<"there are " <<c <<" small letters" <<endl; 
	cout <<"there are " <<n <<" numbers" <<endl; 
	cout <<"there are " <<o <<" others" <<endl; 
	return 0; 
}

[baihacker]

#include  <iostream> 
using namespace std; 
int main () 
{ 
	char a[100]; 
	int i=0; 
	int C=0,c=0,n=0,o=0; 
	bool condition = true; 
	while(condition) 
	{ 
		if((a[i]=getchar())=='\n') //这里有问题
		{ 
			condition = false; 
		} 
		i++; 
	} 
	for(int j=0;a[j]!='\n';j++) //条件
	{ 
		if(a[j] <=90 && a[j]>=65) 
		{ 
			C++; 
		} 
		else if(a[j] <=122 && a[j]>=97) 
		{ 
			c++; 
		} 
		else if(a[j] <=57 && a[j]>=48) 
		{ 
			n++; 
		} 
		else  
			o++; 
	} 
	cout <<"there are " <<C <<" Capitals" <<endl; 
	cout <<"there are " <<c <<" small letters" <<endl; 
	cout <<"there are " <<n <<" numbers" <<endl; 
	cout <<"there are " <<o <<" others" <<endl; 
	return 0; 
}

[c_spark]

程序帮你改了一下

#include <iostream> 
#include <string>
using namespace std; 
int main () 
{ 
	//char a[100]; 
	string a;
	int i=0; 
	int C=0,c=0,n=0,o=0; 
	bool condition = true; 
	/*while(condition) 
	{ 
		if((a[i]=getchar())=='\n') //只能读入字符...
		{ 
			condition = false; 
		} 
		i++; 
	}*/
	getline(cin,a); 
	for(int j=0;a[j] !='\0';j++) //j->a[j]这里要判断的是字符串中的a[i]是否'\0'
	{ 
		if(a[j] <=90 && a[j]>=65) 
		{ 
			C++; 
		} 
		else if(a[j] <=122 && a[j]>=97) 
		{ 
			c++; 
		} 
		else if(a[j] <=57 && a[j]>=48) 
		{ 
			n++; 
		} 
		else  
			o++; 
	} 
	cout <<"there are " <<C <<" Capitals" <<endl; 
	cout <<"there are " <<c <<" small letters" <<endl; 
	cout <<"there are " <<n <<" numbers" <<endl; 
	cout <<"there are " <<o <<" others" <<endl; 
	return 0; 
}

[不想低调]

lz要实现什么 ？

[DTCPHQ]

输入一串字符,找出整数个人,大写字母个数,小写个数及其他!