an> <span class="parameter">mchId</span>,
	<span class="identifier">string</span> <span class="parameter">transactionId</span>,
	<span class="identifier">string</span> <span class="parameter">nonceStr</span>,
	<span class="identifier">string</span> <span class="parameter">outTradeNo</span>,
	<span class="identifier">string</span> <span class="parameter">key</span>,
	<span class="identifier">string</span> <span class="parameter">signType</span> = "MD5"
)</pre></div><div id="ID0EBCA_code_Div2" class="codeSnip