综合型编程论坛

#include <iostream> #include <string> #include <fstream> #include <vector> using namespace std; int main(int argc, char *argv[] ) { string fname="read_line.cpp"; vector<string> lines; string a; ifstream fh( fname.c_str() ); if (!fh) cerr<<"can't op...

#include <iostream> #include <string> using namespace std; void test1(string&& a, string&& b) { cout << "A:" << a << ", B:" << b <<endl; } void test2(const string& a, const string& b) { cout << "A:" << a << ", B:" << b ...

遍历输出匹配的子元素 //regex_constants - STL pdf P726 #include <iostream> #include <string> #include <regex> using namespace std; int main(int argc, char *argv[] ) { string str("foo<1>bar<2>test\nnewline"); smatch m; bool found; found = regex_search(str, m, regex("(\...

参考资料：
如何平均得到圆内点的随机分布
如何生成一个随机的圆形
均匀的生成圆和三角形内的随机点