vscode不能命中断点如何解决？

vscode c++ 编译生成后,调试时无法命中断点的解决办法

//test.cpp#include <stdio.h>int g_var = 0;void print_line(char *str){    if (str != NULL)        printf("%s\r\n", str);    else        printf("null string\r\n");}int main (int argc, char **argv){    int l_var = 1;    print_line("hello world!");    printf("g_var = %d, l_var = %d.\r\n", g_var, l_var);    return 0;}

launch.json

{        "version": "0.2.0",        "configurations": [            {                "name": "(gdb) Launch",                "type": "cppdbg",                "request": "launch",                "program": "${workspaceRoot}/test.exe",                "args": [],                "stopAtEntry": false,                "cwd": "${workspaceRoot}",                "environment": [],                "externalConsole": true,                "MIMode": "gdb",                "miDebuggerPath": "C:\\MinGW\\bin\\gdb.exe",                "setupCommands": [                    {                        "description": "Enable pretty-printing for gdb",                        "text": "-enable-pretty-printing",                        "ignoreFailures": true                    }                ]            }        ]    }

tasks.json

{    // See https://go.microsoft.com/fwlink/?LinkId=733558    // for the documentation about the tasks.json format    "version": "2.0.0",    "tasks": [        {            "taskName": "test",            "type": "shell",            "command": "g++",            "args": ["-g", "${file}", "-o", "${workspaceRoot}/test.exe"]        }    ]}

编译成功后，在源码中设置断点，却无法命中断点。

后来查看官方c++编译调试文档和尝试，在launch.json文件的

"setupCommands": [{"description": "Enable pretty-printing for gdb","text": "-enable-pretty-printing","ignoreFailures": true}]

后面加上

"preLaunchTask": "test" 配置，调试时就可以正常命中断点了。

注意：别忘了"setupCommands"的中括号’ ] ‘后面加上一个逗号。

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