fix: 移除 private 相关部分示例代码内多余注释，避免误导 (xcatliu#206)

ModyQyW · web-flow · commit 8f21e30bfa7d · 2021-02-01T09:04:22.000+08:00
diff --git a/advanced/class.md b/advanced/class.md
@@ -179,7 +179,7 @@ class Animal {
 }
 
 let a = new Animal('Jack');
-console.log(a.name); // Jack
+console.log(a.name);
 a.name = 'Tom';
 
 // index.ts(9,13): error TS2341: Property 'name' is private and only accessible within class 'Animal'.

Original file line number	Diff line number	Diff line change
`@@ -179,7 +179,7 @@ class Animal {`
`179`	`179`	`}`
`180`	`180`
`181`	`181`	`let a = new Animal('Jack');`
`182`		`-console.log(a.name); // Jack`
	`182`	`+console.log(a.name);`
`183`	`183`	`a.name = 'Tom';`
`184`	`184`
`185`	`185`	`// index.ts(9,13): error TS2341: Property 'name' is private and only accessible within class 'Animal'.`