快速集成：

• Step 1. Add the JitPack repository to your build file

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
    }
}

• Step 2. Add the dependency

dependencies {
    def  version = "0.0.2"
    implementation "com.github.andnux:pay:${version}"
    or
    implementation "com.github.andnux:pay:alipay:${version}" 
    implementation "com.github.andnux:pay:wxpay:${version}" 
}