在终端(MACOS)中编译Hello World.cpp

Question

我正在尝试在终端编译C Helloworld。

#include <iostream>
using namespace std;
int main() {
    cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
    return 0;
}

i CD到包含代码的目录。我设法使用命令g -o hello c_helloworld.cpp编译。但是当我使用命令gcc -o hello c_helloworld.cpp时，我会收到以下错误。

架构的未定义符号x86_64：" std :: __ 1 :: locale :: use_facet(std :: __ 1 :: locale :: locale :: id＆amp;(const"， 从： STD :: __ 1 :: CTYPE CONST＆amp;std :: __ 1 :: use_facet>(std :: __ 1 :: locale const＆amp;( 在c_hellowlld-a3d3b8.o中 引用以下参考： std :: __ 1 :: basic_ios> :: wide(char(c_helloworld-a3d3b8.o" std :: __ 1 :: basic_string， std :: __ 1 ::分配器> :: __ init(未签名长，char("，引用 从： std :: __ 1 :: basic_string，std :: __ 1 ::分配器> :: basic_string(basic_string(unsigned long，char( c_helloworld-a3d3b8.o" :: 〜basic_string(("，从： std :: __ 1 :: ostreambuf_iterator> std :: __ 1 :: __ ________d_and_output>(std :: __ 1 :: ostreambuf_iterator>，char const*，char const*，char const*，char const*，char const*，char const*，std :: __ 1 :: ios_base＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp; C_Helloworld-a3d3b8.o" std :: __ 1 :: basic_ostream> :: put(char("，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: endl (std :: __ 1 :: basic_ostream>＆amp;(在c_helloworld-a3d3b8.o中 std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: endl (STD :: __ 1 :: BASIC_OSTREAM>＆amp;(在c_helloworld-a3d3b8.o中 :: Sentry :: Sentry(STD :: __ 1 :: BASIC_OSTREAM>＆amp;("，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 " std :: __ 1 :: basic_ostream :: Sentry :: 〜Sentry(("，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 引用以下参考： _ Main在C_HELELELD-A3D3B8.O中 STD :: __ 1 :: CTYPE CONST＆amp;std :: __ 1 :: use_facet>(std :: __ 1 :: locale const＆amp;( 在c_helloworld-a3d3b8.o中 从： std :: __ 1 :: basic_ios> :: widen(char(c_helloworld-a3d3b8.o" 从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 " std :: __ 1 :: ios_base :: clear(unsigned int("，从： std :: __ 1 :: ios_base :: setState(unsigned int(c_helloworld-a3d3b8.o" std :: terminate(("，从： ____clang_call_call_terminate in C_helloworld-a3d3b8.o" ___cxa_begin_catch"，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 ____clang_call_call_terminate in C_helloworld-a3d3b8.o" ___cxa_call_unexped"，从： std :: __ 1 :: ostreambuf_iterator> :: ostreambuf_iterator(std :: __ 1 :: basic_ostream>＆amp;(在c_helloworld-a3d3b8.o
中 " ____cxa_end_catch"，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 " ____gxx_personality_v0"，从： std :: __ 1 :: basic_ostream>＆amp;std :: __ 1 :: __ put_character_sequence (std :: __ 1 :: basic_ostream>＆amp; char const*，unsigned long(在c_helloworld-a3d3b8.o中 std :: __ 1 :: ostreambuf_iterator> std :: __ 1 :: __ ________d_and_output>(std :: __ 1 :: ostreambuf_iterator>，char const*，char const*，char const*，char const*，char const*，char const*，std :: __ 1 :: ios_base＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp＆amp; c_helloworld-a3d3b8.o std :: __ 1 :: ostreambuf_iterator> :: ostreambuf_iterator(std :: __ 1 :: basic_ostream>＆amp;(in C_helloworld-a3d3b8.o std :: __ 1 :: basic_ios> :: widen(char(c_helloworld-a3d3b8.o C_Helloworld-A3D3B8.O LD中的矮人异常易位信息(__eh_frame( clang：错误：链接器命令因出口代码1失败(使用-V查看 调用(

Answer 1

GCC用于编译C程序(默认情况下(，G 适用于C 。因此，这是期望的。

默认情况下，GCC链接到标准C库。如果要编译C 程序，则可以通过添加以下选项链接到标准C 库：

gcc -o hello c_helloworld.cpp -lstdc++

ps。我建议您在提出问题之前搜索网站，已经有一个答案。

用GCC

Answer 2

使用G 更容易编译.CPP文件。通过在目录中运行./outputfile来执行编译代码。因此，基本上会运行

g++ file.cpp -o file && ./file

在命令行中

编辑：我的错误.. gcc也可以在此处使用，但是只使用G