为什么我的 C++ 文件无法运行 [重复]

Question

我尝试在终端上运行一个基本的 C++ 文件：

#include <iostream>
using namespace std;
int main() {
    cont << "This is my first C++ program!";
    return 0
}

然后尝试在终端中运行它：

Kawika-and-Chloe-Boss:~ kawikaandchloe$ make learningCPP.cpp
make: *** No rule to make target `learningCPP.cpp'.  Stop.

并尝试过：

Kawika-and-Chloe-Boss:~ kawikaandchloe$ make learningCPP
make: *** No rule to make target `learningCPP'.  Stop.

并尝试过：

Kawika-and-Chloe-Boss:~ kawikaandchloe$ gcc learningCPP.cpp -o learningCPP.out
clang: error: no such file or directory: 'learningCPP.cpp'
clang: error: no input files

这是整个 bash/clang 文件：

Last login: Mon May 25 07:49:21 on console
Kawika-and-Chloe-Boss:~ kawikaandchloe$ make learningCPP.cpp
make: *** No rule to make target `learningCPP.cpp'.  Stop.
Kawika-and-Chloe-Boss:~ kawikaandchloe$ make learningCPP
make: *** No rule to make target `learningCPP'.  Stop.
Kawika-and-Chloe-Boss:~ kawikaandchloe$ gcc learningCPP.cpp -o learningCPP.out
clang: error: no such file or directory: 'learningCPP.cpp'
clang: error: no input files
Kawika-and-Chloe-Boss:~ kawikaandchloe$ $ g++ -o lab21 learningCPP.cpp
-bash: $: command not found
Kawika-and-Chloe-Boss:~ kawikaandchloe$ $ ./lab21
-bash: $: command not found
Kawika-and-Chloe-Boss:~ kawikaandchloe$ ./learningCPP.cpp
-bash: ./learningCPP.cpp: No such file or directory
Kawika-and-Chloe-Boss:~ kawikaandchloe$ ./main
-bash: ./main: No such file or directory
Kawika-and-Chloe-Boss:~ kawikaandchloe$ $ g++ -o main learningCPP.cpp
-bash: $: command not found
Kawika-and-Chloe-Boss:~ kawikaandchloe$ cpp
make learningCPP.cpp
run    
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你能帮忙吗？

Answer 1

根据错误判断，您的文件不是名为 learningCPP.cpp，或者不在您尝试编译它的目录中。

重命名它使其具有该名称，或将目录更改为它的位置，然后构建命令是

g++ learningCPP.cpp -o learningCPP

不是gcc，之前也没有虚假的$。或者，只要源文件存在于工作目录中，您就可以使用make learningCPP。

一旦成功，使用

运行程序

./learningCPP

尽管您必须阅读新的错误消息，并使用它来确定如何修复语法错误，然后才能编译。