语音识别：grammars 属性
grammars 属性是 SpeechRecognition 接口的一个属性，它返回并设置一个 SpeechGrammar 对象的集合，这些对象代表当前 SpeechRecognition 将理解的语法。
值
包含代表您应用程序语法的 SpeechGrammar 对象的 SpeechGrammarList。
示例
此代码摘自我们的 语音颜色改变器 示例。
js
const grammar =
"#JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;";
const recognition = new SpeechRecognition();
const speechRecognitionList = new SpeechGrammarList();
speechRecognitionList.addFromString(grammar, 1);
recognition.grammars = speechRecognitionList;
//recognition.continuous = false;
recognition.lang = "en-US";
recognition.interimResults = false;
recognition.maxAlternatives = 1;
// ...
规范
| 规范 |
|---|
| Web 语音 API # dom-speechrecognition-grammars |
浏览器兼容性
BCD 表格仅在启用了 JavaScript 的浏览器中加载。