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docs: 完善文档
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docs/WechatTenpayV3/Basic_Parameters.md
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docs/WechatTenpayV3/Basic_Parameters.md
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## 如何生成客户端(JSAPI、App、小程序等)所需的参数及二次签名?
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---
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> 请先自行阅读:
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>
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> [《微信支付开发者文档 - 基础支付:JSAPI 调起支付 API》](https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_1_4.shtml)
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>
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> [《微信支付开发者文档 - 基础支付:APP 调起支付 API》](https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_2_4.shtml)
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>
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> [《微信支付开发者文档 - 基础支付:小程序调起支付 API》](https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_5_4.shtml)
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你可根据官方文档的规则利用本库提供的 `RSAUtility` 工具类自行进行签名生成。
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此外,本库还封装了直接生成参数及签名的扩展方法,下面给出一个示例代码:
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```csharp
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/* 以生成 JSAPI 调起支付所需参数为例 */
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var request = new Models.CreatePayTransactionJsapiRequest()
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{
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OutTradeNumber = "商户订单号",
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AppId = "公众号 AppId",
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Description = "描述",
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NotifyUrl = "回调地址",
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Amount = new Models.CreatePayTransactionJsapiRequest.Types.Amount()
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{
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Total = 0
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},
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Payer = new Models.CreatePayTransactionJsapiRequest.Types.Payer()
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{
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OpenId = "用户 OpenId"
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}
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};
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var response = await client.ExecuteCreatePayTransactionJsapiAsync(request);
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/* 下面的参数字典可直接以 JSON 格式返回给客户端,客户端反序列化后再原样传递给 WeixinJSBridge.invoke('getBrandWCPayRequest') 方法即可 */
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var paramMap = client.GenerateParametersForJsapiPayRequest(request.AppId, response.PrepayId);
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```
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---
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### 【附】生成参数相关扩展方法速查表:
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- 生成客户端 JSAPI / 小程序调起支付所需的参数字典:`GenerateParametersForJsapiPayRequest`
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- 生成客户端 APP 调起支付所需的参数字典:`GenerateParametersForAppPayRequest`
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