在C中列印UTF-8后未顯示文本

我正在嘗試在我的程式上列印一些 UTF-8 文本。它不顯示，當我做正常的列印功能，但它的作業我用過之后#include<fcntl.h>，#include <io.h>，setmode(_fileno(stdout), _O_U16TEXT);，轉身printf到wprintf。但是，在我使用了上面提到的那些行之后，它使我所有的正常列印行都不可見，只有 UTF-8 文本可見。我該如何解決？

這是我的代碼：

#include<fcntl.h>
#include <io.h>
#include <stdio.h>

int main (){
setmode(_fileno(stdout), _O_U16TEXT); 

wprintf(L"?██████╗████████╗██╗???██╗██████╗?███████╗███╗??██╗████████╗??██╗???██╗?█████╗?████████╗██╗███╗??██╗?██████╗?\n");printf("\n");
wprintf(L"██╔════╝╚══██╔══╝██║???██║██╔══██╗██╔════╝████╗?██║╚══██╔══╝??██║???██║██╔══██╗╚══██╔══╝██║████╗?██║██╔════╝?\n");printf("\n");
wprintf(L"╚█████╗????██║???██║???██║██║??██║█████╗??██╔██╗██║???██║?????╚██╗?██╔╝██║??██║???██║???██║██╔██╗██║██║??██╗?\n");printf("\n");
wprintf(L"?╚═══██╗???██║???██║???██║██║??██║██╔══╝??██║╚████║???██║??????╚████╔╝?██║??██║???██║???██║██║╚████║██║??╚██╗\n");printf("\n");
wprintf(L"██████╔╝???██║???╚██████╔╝██████╔╝███████╗██║?╚███║???██║???????╚██╔╝??╚█████╔╝???██║???██║██║?╚███║╚██████╔╝\n");printf("\n");
wprintf(L"╚═╝????╚═════╝?╚═════╝?╚══════╝╚═╝??╚══╝???╚═╝????????╚═╝????╚════╝????╚═╝???╚═╝╚═╝??╚══╝?╚═════╝?\n");printf("\n");
wprintf(L"?██████╗██╗???██╗?██████╗████████╗███████╗███╗???███╗\n");printf("\n");
wprintf(L"██╔════╝╚██╗?██╔╝██╔════╝╚══██╔══╝██╔════╝████╗?████║\n");printf("\n");
wprintf(L"╚█████╗??╚████╔╝?╚█████╗????██║???█████╗??██╔████╔██║\n");printf("\n");
wprintf(L"?╚═══██╗??╚██╔╝???╚═══██╗???██║???██╔══╝??██║╚██╔╝██║\n");printf("\n");
wprintf(L"██████╔╝???██║???██████╔╝???██║???███████╗██║?╚═╝?██║\n");printf("\n");
wprintf(L"╚═════╝????╚═╝???╚═════╝????╚═╝???╚══════╝╚═╝?????╚═╝\n");printf("\n"); 


printf("THIS BECOMES INVISIBLE");
printf("how do i make it visible???");

    return;
}

謝謝！

uj5u.com熱心網友回復：

不能輕易wprintf()與printf()：

每個流都有一個方向。在流與外部檔案關聯之后，但在對其執行任何操作之前，流沒有方向。一旦將寬字符輸入/輸出功能應用于無方向的流，該流將成為寬方向的流。類似地，一旦將位元組輸入/輸出功能應用于沒有方向的流，該流就成為面向位元組的流。只有呼叫freopen函式或fwide函式才能改變流的方向。（成功呼叫freopen洗掉任何方向。）
C2x § 7.21.2 4

uj5u.com熱心網友回復：

我認為這里是您的解決方案

#include <stdio.h>
#include <wchar.h>
#include <locale.h>

int main(void)
{
    setlocale(LC_ALL, "");
    printf("?██████╗████████╗██╗???██╗██████╗?███████╗███╗??██╗████████╗  ██╗???██╗?█████╗?████████╗██╗███╗??██╗?██████╗?\n");
    printf("██╔════╝╚══██╔══╝██║???██║██╔══██╗██╔════╝████╗?██║╚══██╔══╝  ██║???██║██╔══██╗╚══██╔══╝██║████╗?██║██╔════╝?\n");
    printf("╚█████╗????██║???██║???██║██║??██║█████╗??██╔██╗██║???██║???  ╚██╗?██╔╝██║??██║???██║???██║██╔██╗██║██║??██╗?\n");
    printf("?╚═══██╗???██║???██║???██║██║??██║██╔══╝??██║╚████║???██║???  ?╚████╔╝?██║??██║???██║???██║██║╚████║██║??╚██╗\n");
    printf("██████╔╝???██║???╚██████╔╝██████╔╝███████╗██║?╚███║???██║???  ??╚██╔╝??╚█████╔╝???██║???██║██║?╚███║╚██████╔╝\n");
    printf("╚═╝????╚═════╝?╚═════╝?╚══════╝╚═╝??╚══╝???╚═╝???  ???╚═╝????╚════╝????╚═╝???╚═╝╚═╝??╚══╝?╚═════╝?\n");
    printf("?██████╗██╗???██╗?██████╗████████╗███████╗███╗???███╗\n");
    printf("██╔════╝╚██╗?██╔╝██╔════╝╚══██╔══╝██╔════╝████╗?████║\n");
    printf("╚█████╗??╚████╔╝?╚█████╗????██║???█████╗??██╔████╔██║\n");
    printf("?╚═══██╗??╚██╔╝???╚═══██╗???██║???██╔══╝??██║╚██╔╝██║\n");
    printf("██████╔╝???██║???██████╔╝???██║???███████╗██║?╚═╝?██║\n");
    printf("╚═════╝????╚═╝???╚═════╝????╚═╝???╚══════╝╚═╝?????╚═╝\n"); 
    
    printf("THIS BECOMES INVISIBLE\n");
    printf("how do i make it visible???\n");
    return 0;
}

輸出：

?██████╗████████╗██╗???██╗██████╗?███████╗███╗??██╗████████╗  ██╗???██╗?█████╗?████████╗██╗███╗??██╗?██████╗?
██╔════╝╚══██╔══╝██║???██║██╔══██╗██╔════╝████╗?██║╚══██╔══╝  ██║???██║██╔??═██╗╚══██╔══╝██║████╗?██║██╔════╝?
╚█████╗????██║???██║???██║██║??██║█████╗??██╔██╗██║???██║???  ╚██╗?██╔╝██║??██║???██║???██║██╔██╗██║██║??██╗?
?╚═══██╗???██║???██║???██║██║??██║██╔══╝??██║╚██??█║???██║???  ?╚████╔╝?██║??██║???██║???██║██║╚████║██║??╚██╗
██████╔╝???██║???╚██████╔╝██████╔╝███████╗██║?╚███║???██║???  ??╚██╔╝???╚█████╔╝???██║???██║██║?╚███║╚??█████╔╝
╚═╝????╚═════╝?╚═════╝??══════╝╚═╝??╚══╝???╚═╝???  ???╚═╝????╚════╝????╚═╝???╚═╝╚═╝??╚══╝?╚═════╝?
?██████╗██╗???██╗?████??█╗████████╗███████╗███╗???███╗
?█╔════╝╚██╗?██╔╝██╔════╝╚══██╔═?╝██╔════╝████╗?████║
╚█████╗??╚████╔╝?╚█████╗????██║???█████╗??██╔████╔██║
?╚═══██╗??╚██╔╝???╚══??██╗???██║???██╔══╝??██║╚██╔╝██║
██████╔╝???██║???██████╔╝???██║???███████╗██║?╚═╝?██║
╚═════╝????╚═╝???╚═════╝????╚═╝???╚══════╝╚═╝?????╚═╝
THIS BECOMES INVISIBLE
how do i make it visible???

uj5u.com熱心網友回復：

更改時保存原始模式，重繪 并恢復模式以切換回來。您只能在 _O_U16TEXT 模式下使用寬標準輸出函式。請參閱檔案中的兩個注意事項：

Unicode 模式用于寬列印功能（例如wprintf），不支持窄列印功能。在 Unicode 模式流上使用窄列印功能會觸發斷言。

和：

如果將資料寫入檔案流，請fflush在_setmode用于更改模式之前使用using 顯式重繪 代碼 。如果不重繪 代碼，可能會出現意外行為。如果您尚未將資料寫入流，則不必重繪 代碼。

#include<fcntl.h>
#include <io.h>
#include <stdio.h>

int main () {
    auto old_mode = _setmode(_fileno(stdout), _O_U16TEXT);

    wprintf(L"?██████╗████████╗██╗???██╗██████╗?███████╗███╗??██╗████████╗  ██╗???██╗?█████╗?████████╗██╗███╗??██╗?██████╗?\n");
    wprintf(L"██╔════╝╚══██╔══╝██║???██║██╔══██╗██╔════╝████╗?██║╚══██╔══╝  ██║???██║██╔══██╗╚══██╔══╝██║████╗?██║██╔════╝?\n");
    wprintf(L"╚█████╗????██║???██║???██║██║??██║█████╗??██╔██╗██║???██║???  ╚██╗?██╔╝██║??██║???██║???██║██╔██╗██║██║??██╗?\n");
    wprintf(L"?╚═══██╗???██║???██║???██║██║??██║██╔══╝??██║╚████║???██║???  ?╚████╔╝?██║??██║???██║???██║██║╚████║██║??╚██╗\n");
    wprintf(L"██████╔╝???██║???╚██████╔╝██████╔╝███████╗██║?╚███║???██║???  ??╚██╔╝??╚█████╔╝???██║???██║██║?╚███║╚██████╔╝\n");
    wprintf(L"╚═════╝????╚═╝????╚═════╝?╚═════╝?╚══════╝╚═╝??╚══╝???╚═╝???  ???╚═╝????╚════╝????╚═╝???╚═╝╚═╝??╚══╝?╚═════╝?\n");
    wprintf(L"?██████╗██╗???██╗?██████╗████████╗███████╗███╗???███╗\n");
    wprintf(L"██╔════╝╚██╗?██╔╝██╔════╝╚══██╔══╝██╔════╝████╗?████║\n");
    wprintf(L"╚█████╗??╚████╔╝?╚█████╗????██║???█████╗??██╔████╔██║\n");
    wprintf(L"?╚═══██╗??╚██╔╝???╚═══██╗???██║???██╔══╝??██║╚██╔╝██║\n");
    wprintf(L"██████╔╝???██║???██████╔╝???██║???███████╗██║?╚═╝?██║\n");
    wprintf(L"╚═════╝????╚═╝???╚═════╝????╚═╝???╚══════╝╚═╝?????╚═╝\n");

    fflush(stdout);
    _setmode(_fileno(stdout), old_mode);
    printf("This is no longer invisible\n");
}

輸出：

?██████╗████████╗██╗???██╗██████╗?███████╗███╗??██╗████████╗  ██╗???██╗?█████╗?████████╗██╗███╗??██╗?██████╗?
██╔════╝╚══██╔══╝██║???██║██╔══██╗██╔════╝████╗?██║╚══██╔══╝  ██║???██║██╔══██╗╚══██╔══╝██║████╗?██║██╔════╝?
╚█████╗????██║???██║???██║██║??██║█████╗??██╔██╗██║???██║???  ╚██╗?██╔╝██║??██║???██║???██║██╔██╗██║██║??██╗?
?╚═══██╗???██║???██║???██║██║??██║██╔══╝??██║╚████║???██║???  ?╚████╔╝?██║??██║???██║???██║██║╚████║██║??╚██╗
██████╔╝???██║???╚██████╔╝██████╔╝███████╗██║?╚███║???██║???  ??╚██╔╝??╚█████╔╝???██║???██║██║?╚███║╚██████╔╝
╚═════╝????╚═╝????╚═════╝?╚═════╝?╚══════╝╚═╝??╚══╝???╚═╝???  ???╚═╝????╚════╝????╚═╝???╚═╝╚═╝??╚══╝?╚═════╝?
?██████╗██╗???██╗?██████╗████████╗███████╗███╗???███╗
██╔════╝╚██╗?██╔╝██╔════╝╚══██╔══╝██╔════╝████╗?████║
╚█████╗??╚████╔╝?╚█████╗????██║???█████╗??██╔████╔██║
?╚═══██╗??╚██╔╝???╚═══██╗???██║???██╔══╝??██║╚██╔╝██║
██████╔╝???██║???██████╔╝???██║???███████╗██║?╚═╝?██║
╚═════╝????╚═╝???╚═════╝????╚═╝???╚══════╝╚═╝?????╚═╝
This is no longer invisible

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