如何使用Nodejs将数据作为文件夹中的文件名写入CSV文件

Question

Anty body 确实使用 javascript 将文件夹中的文件名写入 CSV 文件

我的文件夹结构是

Data
 +IMG
    +test
       -1.png
       -2.png
    +train
       -3.png
       -4.png

输出的 CSV 文件会是这样的

Data/IMG/test/1.png     Data/IMG/train/3.png
Data/IMG/test/2.png     Data/IMG/train/4.png

Answer 1

您只需要遍历所有文件夹并找到所有文件。 您可以参考this answer 进行操作。

当您找到所有文件的路径时，您可以将这些路径写入 csv 文件的字符串中：

const fs = require('fs');
const path = require('path');

let csvStr = "";

async function loop(startPath) {
    // Our starting point
    try {
        // Get the files as an array
        const files = await fs.promises.readdir(startPath);

        // Loop them all with the new for...of
        for (const file of files) {
            // Get the full paths
            const currentPath = path.join(startPath, file);

            // Stat the file to see if we have a file or dir
            const stat = await fs.promises.stat(currentPath);

            if (stat.isFile()) {
                console.log("'%s' is a file.", currentPath);
                // put the file into csv string
                csvStr += currentPath + ", "
            } else if (stat.isDirectory()) {
                console.log("'%s' is a directory.", currentPath);
                // enter the dictionary and loop
                await loop(currentPath);
            }

        } // End for...of
    } catch (e) {
        // Catch anything bad that happens
        console.error("We've thrown! Whoops!", e);
    }

}

// Make an async function that gets executed immediately
(async () => {
    // start loop from the path where you run node
    await loop("./");

    fs.writeFileSync("your.csv", csvStr);
})();