cmessagewrap的xml消息体里图片和语音的消息提都能拿到
图片消息体
<?xml version="1.0"?>\n<msg>\n\t< img aeskey="00532209bde55ab34f7b071628b4d3ef" encryver="1" cdnthumbaeskey="00532209bde55ab34f7b071628b4d3ef" cdnthumburl="3057020100044b304902010002044e44807b02032f77f50204245b90db020464454e26042438656365633336312d343966632d346437652d623361652d646634336133363838623533020401150a020201000405004c550500" cdnthumblength="4005" cdnthumbheight="120" cdnthumbwidth="90" cdnmidheight="0" cdnmidwidth="0" cdnhdheight="0" cdnhdwidth="0" cdnmidimgurl="3057020100044b304902010002044e44807b02032f77f50204245b90db020464454e26042438656365633336312d343966632d346437652d623361652d646634336133363838623533020401150a020201000405004c550500" length="31983" md5="8ae4e3a942e972c0b82321ec7b661db7" hevc_mid_size="31983" />\n\t<platform_signature></platform_signature>\n\t<imgdatahash></imgdatahash>\n</msg>
语音消息体
<msg><voicemsg endflag="1" cancelflag="0" forwardflag="0" voiceformat="4" voicelength="3180" length="4987" bufid="0" aeskey="74cc7ffb5e03b2a196a70843445bf11c" voiceurl="3052020100044b304902010002046e483de802032f77f50204225b90db020464454e83042463626435666364612d623365312d343133382d396664322d30383332386363383931653202040114000f0201000400" voicemd5="" clientmsgid="49dc3d00b51ee29511971412d84e5491wxid_mtwrk0lvvstd22_119_1682263680" fromusername="xxxxx" /></msg>
这种消息体里资源文件该如何获取到文件下载地址呀