我遵循的步骤：
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char* argv[]){
int i, row,incre=0,change=0;
for(i=0; i<18; i++){
if(change==0)
{
incre++;
row =3-i%3;
printf("%d ",row);
if(incre>=3){
change=1;
incre=0;
//printf("\n");
}
}
else{
incre++;
row =1+i%3;
printf("%d ",row);
if(incre>=3){
change=0;
incre=0;
//printf("\n");
}
}
}
printf("\n");
return 0;
}
5.firebase 部署 注意：我可以选择从现有项目中进行选择，我做到了。 firebase.json：
Hosting: Configure files for Firebase Hosting and (optionally) set up GitHub Action deploys What do you want to use as your public directory? (public) build Configure as a single-page app (rewrite all urls to /index.html)?(y/N) y Set up automatic builds and deploys with GitHub? (y/N) N File build/index.html already exists. Overwrite? (y/N) N我的 index.html：
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
部署后我等了 15-20 分钟才显示欢迎消息，现在我看到的只是一个空白屏幕。
我有一个 <!DOCTYPE html>
<html lang="en">
<head>
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta name="description"
content="some cool meta tags" />
<meta content="width=device-width, initial-scale=1" name="viewport" />
<title>
Some cool title
</title>
</head>
<body>
<div id="root"></div>
</body>
</html>
, build 文件夹。它们都包含与上面提到的相同的 index.html。此外，public 是 public 和 build 文件夹的兄弟。我在本地运行我的应用，它按预期运行。