无法在 VS Code 中多次使用预启动任务

我正在尝试多次使用预启动任务在我的launch.json文件中执行两个不同的任务。不幸的是，它只执行我的launch.json文件中的最后一个预启动任务。我的tasks.json中的任务使用相同的命令("g++"(来编译我的程序，但它们的参数不同(这是因为我需要先将我的源代码编译成"O"文件，然后将"O"文件编译为"exe"文件(，所以我正在寻找一种方法如何仅使用一个预启动任务在launch.json文件中执行这两个任务。请问还有其他想法吗？

tasks.json：

{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "0.1.0",
"tasks": [
{
"taskName": "CompileToOfile",
"command": "g++",
"args": [
"-c","${fileBasename}",
"-o","${fileBasenameNoExtension}.o",
"-I","/Users/Acer/MinGW64/include",
"-I","/Users/Acer/MinGW64/x86_64-w64-mingw32/include",
"-I","/Users/Acer/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include",
"-I","/Users/Acer/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include/c++",
"-m32"
],
"isShellCommand": true
},
{
"taskName": "CompileWGDBWBGI",
"command": "g++",
"args": [
"${fileBasenameNoExtension}.o",
"-o",
"${fileBasenameNoExtension}.exe",
"-L","/Users/Acer/MinGW64/lib32",
"-L","Users/Acer/MinGW64/x86_64-w64-mingw32/lib32",
"-static-libgcc",
"-lbgi",
"-lgdi32",
"-lcomdlg32",
"-luuid",
"-loleaut32",
"-lole32",
"-m32"
],
"isShellCommand": true
}
]
}

launch.json：

{
"version": "0.2.0",
"configurations": [
{
"name": "(Windows) Launch",
"type": "cppvsdbg",
"request": "launch",
"preLaunchTask": "CompileToOfile",
"preLaunchTask": "CompileWGDBWBGI",
"program": "${workspaceRoot}/${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceRoot}",
"environment": [],
"externalConsole": true
},
{
"name": "(gdb) Launch",
"type": "cppdbg",
"request": "launch",
"preLaunchTask": "CompileToOfile",
"preLaunchTask": "CompileWGDBWBGI",
"program": "${workspaceRoot}/${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceRoot}",
"environment": [],
"externalConsole": true,
"MIMode": "gdb",
"miDebuggerPath": "/Users/Acer/MinGW64/bin/gdb.exe",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
}
]
}