版权声明：自由转载-非商用-非衍生-保持署名 | Creative Commons BY-NC-ND 4.0
Example
将一个数组拷贝到另一个数组
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#include <iostream>
using std::cin;
using std::cout;
using std::endl;
int ()
{
int arr[5] = { 1, 2, 3, 4, 5 };
int *source = arr;
size_t sz = sizeof(arr) / sizeof(*arr);
int *dest = new int[sz];
while (source != arr + sz)
{
*dest++ = *source++;
}
int *dp = dest - sz;
for (size_t i = 0; i < sz; ++i)
{
cout << *dp << endl;
dp++;
}
return 0;
}
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outputs
Exercise 6.12
输入一些单词，统计里面单词出现的次数。
如：how, now now now brown cow cow
则需输出: how 1次，now 3次，brown 1次，cow 2次
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#include <iostream>
#include <string>
#include <vector>
using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::vector;
bool isCharacter(char ch)
{
return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z');
}
int ()
{
string str;
getline(cin, str);
const char *cp = str.c_str();
vector<string> raw;
string tmp = "";
while (*cp) {
if (isCharacter(*cp))
{
tmp += *cp++;
if (*cp != '
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