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请给一个原代码，可以学习到在书上学不到的东西，最好是有注释的，不要叫我去搜索了，那里找到的好象都不符号我的环境，不是太难就是没有注释，看起来很头痛的，
那位大哥可以给我发一个吗？或者是给我地址，谢谢
yjhyn@163.com
网友回答：
在书上学不到的东西?
楼主..怕没有什么东西是在书上学不到的吧...
你应该对"书上"作一下限定.:)
实际操作的经验是书上没有的...
楼主意思不明白...
楼主的问题莫名其妙...
有详细注释的源代码，书上一大堆。
楼主指的是什么书？
如果没有特指的话，我想这个问题就没有答案了
我学得C++都是书上看的...
int main()
{
cout << __FILE__ << endl;
return main();
}
我考，这还不简单，
发了，你看看吧，不知道是否你需要！
Return Value
The index of the first character of the substring searched for when successful; otherwise npos.
Example
// basic_string_find.cpp
// compile with: /EHsc
#include <string>
#include <iostream>
int main( )
{
using namespace std;
// The first member function
// searches for a single character in a string
string str1 ( "Hello Everyone" );
cout << "The original string str1 is: " << str1 << endl;
basic_string <char>::size_type indexCh1a, indexCh1b;
static const basic_string <char>::size_type npos = -1;
indexCh1a = str1.find ( "e" , 3 );
if (indexCh1a != npos )
cout << "The index of the 1st e found after the 3rd"
<< " position in str1 is: " << indexCh1a << endl;
else
cout << "The character e was not found in str1 ." << endl;
indexCh1b = str1.find ( "x" );
if (indexCh1b != npos )
cout << "The index of the x found in str1 is: "
<< indexCh1b << endl << endl;
else
cout << "The Character x was not found in str1."
<< endl << endl;
// The second member function searches a string
// for a substring as specified by a C-string
string str2 ( "Let me make this perfectly clear." );
cout << "The original string str2 is: " << str2 << endl;
basic_string <char>::size_type indexCh2a, indexCh2b;
const char *cstr2 = "perfect";
indexCh2a = str2.find ( cstr2 , 5 );
if ( indexCh2a != npos )
cout << "The index of the 1st element of perfect "
<< "after\n the 5th position in str2 is: "
<< indexCh2a << endl;
else
cout << "The substring perfect was not found in str2 ."
<< endl;
const char *cstr2b = "imperfectly";
indexCh2b = str2.find ( cstr2b , 0 );
if (indexCh2b != npos )
cout << "The index of the 1st element of imperfect "
<< "after\n the 5th position in str3 is: "
<< indexCh2b << endl;
else
cout << "The substring imperfect was not found in str2 ."
<< endl << endl;
// The third member function searches a string
// for a substring as specified by a C-string
string str3 ( "This is a sample string for this program" );
cout << "The original string str3 is: " << str3 << endl;
basic_string <char>::size_type indexCh3a, indexCh3b;
const char *cstr3a = "sample";
indexCh3a = str3.find ( cstr3a );
if ( indexCh3a != npos )
cout << "The index of the 1st element of sample "
<< "in str3 is: " << indexCh3a << endl;
else
cout << "The substring perfect was not found in str3 ."
<< endl;
const char *cstr3b = "for";
indexCh3b = str3.find ( cstr3b , indexCh3a + 1 , 2 );
if (indexCh3b != npos )
cout << "The index of the next occurrence of for is in "
<< "str3 begins at: " << indexCh3b << endl << endl;
else
cout << "There is no next occurrence of for in str3 ."
<< endl << endl;
// The fourth member function searches a string
// for a substring as specified by a string
string str4 ( "clearly this perfectly unclear." );
cout << "The original string str4 is: " << str4 << endl;
basic_string <char>::size_type indexCh4a, indexCh4b;
string str4a ( "clear" );
indexCh4a = str4.find ( str4a , 5 );
if ( indexCh4a != npos )
cout << "The index of the 1st element of clear "
<< "after\n the 5th position in str4 is: "
<< indexCh4a << endl;
else
cout << "The substring clear was not found in str4 ."
<< endl;
string str4b ( "clear" );
indexCh4b = str4.find ( str4b );
if (indexCh4b != npos )
cout << "The index of the 1st element of clear "
<< "in str4 is: "
<< indexCh4b << endl;
else
cout << "The substring clear was not found in str4 ."
<< endl << endl;
}
Output
The original string str1 is: Hello Everyone
The index of the 1st e found after the 3rd position in str1 is: 8
The Character x was not found in str1.
The original string str2 is: Let me make this perfectly clear.
The index of the 1st element of perfect after
the 5th position in str2 is: 17
The substring imperfect was not found in str2 .
The original string str3 is: This is a sample string for this program
The index of the 1st element of sample in str3 is: 10
The index of the next occurrence of for is in str3 begins at: 24
The original string str4 is: clearly this perfectly unclear.
The index of the 1st element of clear after
the 5th position in str4 is: 25
The index of the 1st element of clear in str4 is: 0
你看看这个程序吧
int main()
{
cout << __FILE__ << endl;
return main();
}
这个其实是函数递归的
书上学不到？ 不大可能吧。