Kotlin Files Paths write ByteArray writeString写多行BufferedWriter

朴灿烈づ我的快乐病毒、 2023-10-15 21:21 13阅读 0赞

### Kotlin Files Paths write ByteArray writeString写多行BufferedWriter ###

### ![e367bbe17a37420cb27d1b42731ac5f3.png][] ###

import java.nio.file.Files
    import java.nio.file.Paths
    import java.nio.file.StandardOpenOption
    
    fun main(args: Array<String>) {
        val filePath = "./myfile.txt"
        val path = Paths.get(filePath)
    
        val bytes: ByteArray = "hello,".toByteArray() //覆盖写文件
        Files.write(path, bytes)
    
        val string: String = "world!"
        Files.writeString(path, string, StandardOpenOption.APPEND) //原文件追加
    
        val bufferedWriter = Files.newBufferedWriter(path, StandardOpenOption.APPEND)
        bufferedWriter.newLine() //换行
        bufferedWriter.flush()
    
        var lines = mutableListOf<String>()
        repeat(3) {
            lines.add(it.toString())
        }
        Files.write(path, lines, StandardOpenOption.APPEND) //写入多行
    
        bufferedWriter.write("2023")
        bufferedWriter.flush() //预备写的数据在内存，flush流，写入本地。
        bufferedWriter.close()
    
        //打印文件全部内容
        println(Files.readString(path))
    }

> hello,world!  
> 0  
> 1  
> 2  
> 2023

[Kotlin File writeText appendText appendBytes readBytes readText-CSDN博客Java把一个文件转化为byte字节数组 /\*\* \* 把一个文件转化为byte字节数组。try \{ File...\_java文件转byte数组。Java把一个文件转化为byte字节数组\_java文件转byte数组\_zhangphil的博客-CSDN博客。Kotlin Files readAllBytes readAllLines readString-CSDN博客。![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/132766718][Kotlin File writeText appendText appendBytes readBytes readText-CSDN_Java_byte_ _ _ _byte_try _ File..._java_byte_Java_byte_java_byte_zhangphil_-CSDN_Kotlin Files readAllBytes readAllLines readString-CSDN_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_132766718]

[Kotlin Files readAllBytes readAllLines readString-CSDN博客Java把一个文件转化为byte字节数组 /\*\* \* 把一个文件转化为byte字节数组。try \{ File...\_java文件转byte数组。Java把一个文件转化为byte字节数组\_java文件转byte数组\_zhangphil的博客-CSDN博客。![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/132763802][Kotlin Files readAllBytes readAllLines readString-CSDN_Java_byte_ _ _ _byte_try _ File..._java_byte_Java_byte_java_byte_zhangphil_-CSDN_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_132763802]

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[Kotlin File writeText appendText appendBytes readBytes readText-CSDN_Java_byte_ _ _ _byte_try _ File..._java_byte_Java_byte_java_byte_zhangphil_-CSDN_Kotlin Files readAllBytes readAllLines readString-CSDN_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_132766718]: https://blog.csdn.net/zhangphil/article/details/132766718
[Kotlin Files readAllBytes readAllLines readString-CSDN_Java_byte_ _ _ _byte_try _ File..._java_byte_Java_byte_java_byte_zhangphil_-CSDN_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_132763802]: https://blog.csdn.net/zhangphil/article/details/132763802