#include<iostream>usingnamespacestd;enumAnimal { DOG, CAT, BIRD };voidprintAnimal(Animal animal){switch(animal) {caseDOG:std::cout<<"This is a DOG."<<std::endl;break;caseCAT:std::cout<<"This is a CAT."<<std::endl;break;caseBIRD:std::cout<<"This is a BIRD."<<std::endl;break...
using namespace std; template<typename T> // 或者 template<class T> T my_max(T a, T b) { return a>b ? a : b; } int main() { int nresult = my_max(10, 25); char nresult2 = my_max('a', 'b'); cout << "nresult=" << nresult << "\nnresult2=" << nresult2 <...
使用matplotlib在python中绘图? 使用"this"和方法(在Java中) 在Oracle中强制使用索引 在Vuejs 2.0中使用"this“ SUMIF在Excel中的使用 在as中快速使用AnyClass对象? 在vista中避免使用UAC 在JavaScript中同步使用setTimeout 页面内容是否对你有帮助? 有帮助 ...
In the above program, we demonstrate the use of#definemacro. Here we defined a macroPRINT_MSG_TYPE1at the top in our program. Then we checked defined macros in theMain()method. Here we definedPRINT_MSG_TYPE1macro but we did not definePRINT_MSG_TYPE2macro that's why the message "Print...
cat(int a;,int b;);/* 宏展开: int a;;int b;; */ /* 根据','分割记号 */ #define cat(x,y) x;y; cat(int a;,int b;);/* 宏展开: int a;;int b;; */ /* 根据','分割记号 */ 1. 2. 3. 4. 5. 6. 用实参产生的记号替换宏中未用引号引起来的相应形式参数的标识符 ...
#include <iostream>#include"Circle.h"usingnamespacestd;intmain() { Circle c(3); cout<<"Area="<<c.Area()<<endl;return1; } #ifndef/#define/#endif 防止该头文件被重复引用 “被重复引用”是指一个头文件在同一个cpp文件中被include了多次,这种错误常常是由于include嵌套造成的。比如:存在a.h文件...
if 'anext' not in builtins.__dict__: # pragma: no cover doctest_namespace['anext'] = py_anext mocker.patch('logging.basicConfig') caplog.set_level(logging.NOTSET) doctest_namespace['SYSTEM_INSTALL_PATH'] = monkeypatch_systemd[0] doctest_namespace['USER_INSTALL_PATH'] = monkeypatch...
options =OptionParser()"""Global options object.All defined options are availableasattributes onthisobject."""def define(name,default=None, type=None, help=None, metavar=None, multiple=False, group=None, callback=None):"""Defines an option in the global namespace.See `OptionParser.define`....
For every Pydantic model usingBaseLanguageModel, the current fix from#28297added a.model_rebuild()call and imported the missing symbols. While this works, this is quite confusing as is. The reason it works ismodel_rebuild()will use the module namespace where is it called to resolve annotation...
def("create_array", &create_array, "Create a 3x3 array of doubles"); } 在Python 中使用此模块: python import example import numpy as np arr = example.create_array() print(arr) print(type(arr)) # Should be <class 'numpy.ndarray'> 确保你的 C++ 代码正确使用了 py::...