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@@ -12,7 +12,7 @@
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#### 1.2 APP mode
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- Purchase interface specific fields
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+ Pre-authorization interface specific fields
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| Parameter | Type | Required | Description |
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| --------- | ------ | ---- | ----- |
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@@ -26,7 +26,7 @@ Response message：
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| RespMsg | String | M | Response message |
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| tn | String | O | Transaction serial number. Required parameter for Wechat app payment. When RespCode=00 returns it. |
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-After getting tn, call the SDK to pay according to Section 7 of this document.
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+After getting tn, call the SDK to pay according to APP document.
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```javascript
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Test cards:
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