getline

从文件中读取下一行内容。

返回下一行内容，到达文件末尾时返回undefined。 string / undefined

getline()

”`javascript function main() { let file = os.open(“data.txt”, “r”) let lineCount = 0

while (!file.eof()) {
    let line = file.getline()
    if (line) {
        lineCount++
        Log("Line", lineCount + ":", line)
    }
}

Log("Total lines:", lineCount)
file.close()

}“` 逐行读取文件直至结束。

按行顺序读取文件内容。

{@fun/OS/File/close close}, {@fun/OS/File/puts puts}, {@fun/OS/File/printf printf}, {@fun/OS/File/flush flush}, {@fun/OS/File/tell tell}, {@fun/OS/File/seek seek}, {@fun/OS/File/eof eof}, {@fun/OS/File/read read}, {@fun/OS/File/write write}, {@fun/OS/File/getline getline}, {@fun/OS/File/toString toString}