autojs读取指定行

let filePath = files.path("./main.js");
log("行数 = " + 读取行数(filePath));
log("指定第1行 = " + 读取指定行(1));
function 读取行数(filePath) {
  let cmd = "wc -l  " + filePath;
  let result = shell(cmd).result;
  return result;
}
function 读取指定行(num) {
  let cmd = "sed -n '" + num + "," + (num + 1) + "p' " + filePath;
  log(cmd);
  let result = shell(cmd).result;
  return result;
  // sed -n 'a,bp' a.txt  读取自第a行到第b行的数据
}