C++ 头文件字体显示全白

出现这种情况可能是因为你的编辑器或终端默认使用了白色背景，而头文件字体颜色默认设置为白色。可以尝试修改编辑器或终端的背景颜色，或者修改头文件字体颜色。如果你使用的是 Visual Studio Code 编辑器，可以在设置中搜索 "workbench.colorCustomizations" 并添加以下内容：

"workbench.colorCustomizations": {
    "editorGutter.background": "#F8F8F8",
    "editorLineNumber.foreground": "#BBBBBB",
    "editor.selectionBackground": "#EFEFEF",
    "editor.inactiveSelectionBackground": "#EFEFEF",
    "editor.selectionHighlightBorder": "#EFEFEF",
    "editor.wordHighlightBorder": "#EFEFEF",
    "editor.wordHighlightStrongBorder": "#EFEFEF",
    "editor.findMatchBorder": "#EFEFEF",
    "editor.findMatchHighlightBorder": "#EFEFEF",
    "editorBracketMatch.border": "#EFEFEF",
    "editorBracketMatch.background": "#F0F0F0",
    "editorBracketMatch.highlightBackground": "#F0F0F0",
    "editorCodeLens.foreground": "#999999",
    "editorSuggestWidget.background": "#F8F8F8",
    "editorSuggestWidget.border": "#EFEFEF",
    "editorSuggestWidget.selectedBackground": "#EFEFEF",
    "editorOverviewRuler.border": "#F8F8F8",
    "editorOverviewRuler.findMatchForeground": "#EFEFEF",
    "editorOverviewRuler.rangeHighlightForeground": "#EFEFEF",
    "editorOverviewRuler.selectionHighlightForeground": "#EFEFEF",
    "editorOverviewRuler.wordHighlightForeground": "#EFEFEF",
    "editorOverviewRuler.wordHighlightStrongForeground": "#EFEFEF",
    "editorWhitespace.foreground": "#BBBBBB",
    "editorIndentGuide.background": "#F8F8F8",
    "editor.lineHighlightBackground": "#F8F8F8",
    "editor.hoverHighlightBackground": "#F8F8F8",
    "diffEditor.insertedTextBackground": "#BBFFBB",
    "diffEditor.removedTextBackground": "#FFBBBB",
    "editorGroupHeader.tabsBackground": "#F8F8F8",
    "panel.background": "#F8F8F8",
    "sideBar.background": "#F8F8F8",
    "statusBar.background": "#F8F8F8",
    "tab.activeBackground": "#F8F8F8",
    "tab.border": "#EFEFEF",
    "tab.inactiveBackground": "#F8F8F8",
    "titleBar.activeBackground": "#F8F8F8",
    "titleBar.inactiveBackground": "#F8F8F8"
},
"editor.tokenColorCustomizations": {
    "textMateRules": [
        {
            "scope": "entity.name.type.class",
            "settings": {
                "foreground": "#6C71C4"
            }
        },
        {
            "scope": "entity.name.function",
            "settings": {
                "foreground": "#268BD2"
            }
        },
        {
            "scope": "entity.other.inherited-class",
            "settings": {
                "foreground": "#6C71C4"
            }
        },
        {
            "scope": "variable.parameter",
            "settings": {
                "foreground": "#268BD2"
            }
        },
        {
            "scope": "storage.type",
            "settings": {
                "foreground": "#6C71C4"
            }
        },
        {
            "scope": "support.type",
            "settings": {
                "foreground": "#6C71C4"
            }
        },
        {
            "scope": "keyword.operator",
            "settings": {
                "foreground": "#DC322F"
            }
        },
        {
            "scope": "constant.numeric",
            "settings": {
                "foreground": "#D33682"
            }
        },
        {
            "scope": "constant.language",
            "settings": {
                "foreground": "#6C71C4"
            }
        },
        {
            "scope": "string",
            "settings": {
                "foreground": "#2AA198"
            }
        },
        {
            "scope": "comment",
            "settings": {
                "foreground": "#657B83"
            }
        }
    ]
}

其中，`editor.tokenColorCustomizations` 的部分可以修改头文件字体颜色。