1、输出日志（注意v0的数据类型，否则容易出错，说多了都是泪啊）
const-string v1,"TAG-KEY"
invoke-static {v1,v0},Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

2、栈追踪；只能在方法结束，换行最好
new-instance v0,Ljava/lang/Exception;
const-string v1, "Tracer"
invoke-direct{v0,v1},Ljava/lang/Exception;-><init>(Ljava/lang/String;)V
invoke-virtual {v0},Ljava/lang/Exception;->printStackTrace()V
3、方法剖析
const-string v0,"method_checkCN()"
invoke-static{v0}，Landroid/os/Debug;->startMethodTracing(Ljava/lang/String;)V
invoke-static{},Landroid/os/Debug;->stopMethodTracing()V