嗨,我对以下执行上下文感到困惑
let fs = require('fs');
let text;
fs.readFile('message.txt', 'utf8', function(err, contents) {
text = contents;
}
console.log(text)
回调函数之外的文本未定义..谢谢!
嗨,我对以下执行上下文感到困惑
let fs = require('fs');
let text;
fs.readFile('message.txt', 'utf8', function(err, contents) {
text = contents;
}
console.log(text)
回调函数之外的文本未定义..谢谢!