代码：class.js
class Car {
engine;
drive() {
console.log('呜~呜~~~');
}
}
const c1 = new Car();
c1.drive();
console.log(c1);
运行：
node class
/home/stone/xb2-node/demo/class.js:2
engine;
^
SyntaxError: Unexpected token ;
at Module._compile (internal/modules/cjs/loader.js:723:23)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)
