获取天气预报数据
对于做web项目有天气数据的需求，这个服务很合适：
WebXml.com.cn 2400多个城市天气预报Web服务，包含2300个以上中国城市和100个以上国外城市天气预报数据。数据每2.5小时左右自动更新一次，准确可靠。提供webservice 接口，主连接：http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/
方法调用说明如下：
说明：输入参数：无，
返回数据：一维字符串数组—如下：
<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://WebXml.com.cn/">
<string>阿尔及利亚,3320</string>
<string>阿根廷,3522</string>
<string>阿曼,3170</string>
<string>阿塞拜疆,3176</string>
<string>埃及,3317</string>
<string>埃塞俄比亚,3314</string>
<string>爱尔兰,3246</string>
<string>奥地利,3237</string>
<string>澳大利亚,368</string>
<string>巴基斯坦,3169</string>
<string>巴西,3580</string>
<string>保加利亚,3232</string>
<string>比利时,3243</string>
<string>波兰,3235</string>
<string>朝鲜,3163</string>
<string>丹麦,3245</string>
<string>德国,3238</string>
<string>俄罗斯,3225</string>
<string>法国,3241</string>
<string>菲律宾,3151</string>
<string>芬兰,3248</string>
<string>刚果（金）,3377</string>
<string>哥伦比亚,3524</string>
<string>古巴,344</string>
<string>韩国,3162</string>
<string>荷兰,3244</string>
<string>加拿大,347</string>
<string>加纳,3313</string>
<string>柬埔寨,3154</string>
<string>捷克,3236</string>
<string>克罗地亚,3233</string>
<string>肯尼亚,3316</string>
<string>拉托维亚,3228</string>
<string>老挝,3155</string>
<string>立陶宛,3227</string>
<string>马达加斯加,3312</string>
<string>马尔代夫,3166</string>
<string>马来西亚,3158</string>
<string>马里,3319</string>
<string>美国,346</string>
<string>蒙古,3165</string>
<string>秘鲁,3578</string>
<string>缅甸,3160</string>
<string>莫桑比克,3311</string>
<string>墨西哥,345</string>
<string>南非,3310</string>
<string>尼泊尔,3164</string>
<string>尼日利亚,3379</string>
<string>挪威,3250</string>
<string>葡萄牙,3239</string>
<string>日本,3161</string>
<string>瑞典,3249</string>
<string>瑞士,3242</string>
<string>塞内加尔,3318</string>
<string>沙特阿拉伯,3172</string>
<string>斯里兰卡,3167</string>
<string>泰国,3159</string>
<string>坦桑尼亚,3315</string>
<string>突尼斯,3321</string>
<string>土耳其,3229</string>
<string>委内瑞拉,342</string>
<string>文莱,3153</string>
<string>乌克兰,3226</string>
<string>乌兹别克斯坦,3175</string>
<string>西班牙,3240</string>
<string>希腊,3230</string>
<string>新加坡,3157</string>
<string>新西兰,369</string>
<string>匈牙利,3234</string>
<string>叙利亚,3174</string>
<string>牙买加,343</string>
<string>伊朗,3171</string>
<string>意大利,3231</string>
<string>印度,3168</string>
<string>印度尼西亚,3152</string>
<string>英国,3247</string>
<string>约旦,3173</string>
<string>越南,3156</string>
<string>智利,3523</string>
</ArrayOfString>
（2）getRegionDataset 获得中国省份、直辖市、地区；国家名称（国外）和与之对应的ID
说明：输入参数：无，
返回数据：DataSet—如下：
<Province diffgr:id="Province1" msdata:rowOrder="0">
<RegionID>3113</RegionID>
<RegionName>黑龙江</RegionName>
</Province>
<Province diffgr:id="Province2" msdata:rowOrder="1">
<RegionID>3114</RegionID>
