As follows: Note, because in front of a function, according to use this function, so either in front of the statement, either on top before the function definition.

如下：注意，因为前面的函数据要用到此函数，所以要么在前面声明，要么放在上面函数之前定义。

youdao

Even before the exit poll results were announced, when she cast her ballot in front of an army of reporters, Dalia Grybauskaite appeared confident she would become Lithuania's first female president.

VOA: standard.2009.05.17

The Greece international latched on to a long ball from McGeady in the 76th minute and collected himself in front of Langfield before casually flicking the ball into the back of the net.

BBC: Sport - Football - Celtic 3-0 Aberdeen

Playing on Xbox 360 consoles in a single elimination tournament, some of the biggest names in pro wrestling got their game on before WrestleMania in front of a live audience at the fan axxess event. 2K Sports also live streamed the tournament through Twitch for all fans to watch from home.

FORBES: 2K Sports Officially Gets Into The WrestleMania 29 Ring With Superstar Challenge 2013

But Mohamed ElBaradei, head of the Constitution Party and a member of the National Salvation Front, reiterated two demands before the front would engage in dialogue: the formation of a new government and a committee to amend the constitution.

CNN: STORY HIGHLIGHTS