[refactor] playground p4

README.md

@@ -66,7 +66,7 @@ naza 即哪吒（正确拼音为 nezha，我女儿发音读作 naza，少一个
 
 * pkg/snowflake [分布式ID生成算法snowflake介绍及Go语言实现](https://pengrl.com/p/20041/)
 * pkg/bininfo [给Go程序加入编译版本时间等信息](https://pengrl.com/p/37397/)
-* pkg/nazastring [`Go语言中[]byte和string类型相互转换时的性能分析和优化`](https://www.pengrl.com/p/31544/)
+* pkg/nazastring [Go语言中[]byte和string类型相互转换时的性能分析和优化](https://www.pengrl.com/p/31544/)
 
 * [Go创建对象时，如何优雅的传递初始化参数](https://pengrl.com/p/60015/)
 * playground/p3 [利用CPU cache特性优化Go程序](https://pengrl.com/p/9125/)

playground/p4/p4.go

@@ -32,13 +32,13 @@ func SearchWithLog(n int, f func(int) bool) int {
 
 func main() {
 	const key = 3
+	//const key = 0
+	//const key = 2
+	//const key = 9
 	arr := []int{1, 3, 5, 7}
 	index := SearchWithLog(len(arr), func(i int) bool {
 		//return arr[i] == 3
-		//return arr[i] >= 3
 		return arr[i] >= key
-		//return arr[i] >= 9
-		//return arr[i] >= 2
 	})
 	fmt.Printf("index=%d\n", index)
 	if index < len(arr) && arr[index] == key {