Before this, let’s introduce a line-by-line reading of the NPM: https://github.com/nickewing/line-reader. Friends who need it can take a look.
Directly upload the code:
function readLines(input, func) { var remaining = ''; input.on('data', function(data) { remaining += data; var index = remaining.indexOf('/n'); while (index > -1) { var line = remaining.substring(0, index); remaining = remaining.substring(index + 1); func(line); index = remaining.indexOf('/n'); } }); input.on('end', function() { if (remaining.length > 0) { func(remaining); } });}function func(data) { container.push(data);}var input = fs.createReadStream(__dirname + '/ip_arr.txt');readLines(input, func);