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haiyang416 #49 用支付宝官方提供的 SDK demo 报错了:
```
object(stdClass)#10 (2) { ["error_response"]=> object(stdClass)#9 (4) { ["code"]=> string(5) "40006" ["msg"]=> string(24) "Insufficient Permissions" ["sub_code"]=> string(32) "isv.insufficient-isv-permissions" ["sub_msg"]=> string(15) "ISV 权限不足" } ["sign"]=> string(344) "s3EV8e4lk3T+oerJcI4iH+DAzyrh1azHl65dGJMLyQnxhD24U3wkrcTqXgR0ij7Pf3SEv10/osvWTDFOG9oBWscfMDgl3IRrrcXynr9lv8vwa95YoTTNSxzxDjWWJrPymTlCIeYPwq30kofcAbW6YNLN+uVOygjrv3UMYhRE9kQz07qVvPu+m/El2ZLuRC4QO46WDc0XroGLHMkPrnFWItVNmyewYnqfVcP01FIcoItZrkD94WQiclEqVcbjJBiOr0LSGeiVbXf7uvk00lHK0iut2BLGcNu0QyMwjCdyRhuEcOuirH5rUd6dk6qoBMADpOflNgidynekEaUPUeFcGg==" }
```