p5.js使用RiTa.js时报错RiLexicon未定义问题求助

两个报错直接关联，核心原因如下：

• 你使用的是2.x及以上版本的RiTa.js，该版本已移除RiLexicon类，原RiLexicon的所有能力都整合到全局RiTa对象中，直接调用new RiLexicon()会触发未定义错误
• 你在全局作用域初始化lexicon变量，此时RiTa库还未完成加载，变量本身为undefined，后续调用isNoun方法自然会触发属性读取失败错误
• 额外需确认：项目入口html中已正确引入RiTa.js库，且加载顺序早于你的sketch代码

无需新建lexicon实例，所有原来调用lexicon的方法直接替换为RiTa对象调用即可，修改后可运行的完整代码如下：

let poem = "STOPPING BY WOODS ON A SNOWY EVENING WHOSE woods these are I think I know. His house is in the village though; He will not see me stopping here To watch his woods fill up with snow. My little horse must think it queer To stop without a farmhouse near Between the woods and frozen lake The darkest evening of the year. He gives his harness bells a shake To ask if there is some mistake. The only other sound's the sweep Of easy wind and downy flake. The woods are lovely, dark and deep. But I have promises to keep, And miles to go before I sleep, And miles to go before I sleep."

let words;
let newPoem = "";

function setup() {
    createCanvas(windowWidth, windowHeight);
    background(100);
    
    // 将诗歌字符串分词为单词
    words = RiTa.tokenize(poem);
    // 遍历所有单词，替换名词和形容词为随机同词性单词
    for (i=0; i<words.length; i++){
        let currentWord = words[i];
        if (RiTa.isNoun(currentWord)){
            currentWord = RiTa.randomWord("nn");
        }
        else if (RiTa.isAdjective(currentWord)){
            currentWord = RiTa.randomWord("jj");
        }
        newPoem += currentWord + " ";
    }
    print(newPoem);
}
function draw() {
    textSize(16);
    text(newPoem, width/20, height/4, 500, 800);
}

内容的提问来源于stack exchange，提问作者Nareh