func (this *MyQueue) Peek() int {
	if len(this.s2) == 0 {
		this.sync()
	}
	v := this.s2[len(this.s2)-1]
	return v
}
/** Get the front element. */
Get the front element.
/ ** Get the front element . * /
func (this *MyQueue) Peek() int {
	if len(this.s2) == 0 {
		this.sync()
	}
	v := this.s2[len(this.s2)-1]
	return v
}
func ( this * MyQueue ) Peek ( ) int { if len ( this . s2 ) == 0 { this . sync ( ) } v := this . s2 [ len ( this . s2 ) - 1 ] return v }
Get the front element.
Get the front element .