关于mapx的表现非常好，请放心使用Tracing not turned on.

Tns error struct:

nr err code: 0

ns main err code: 12541

TNS-12541: TNS：无监听器

ns secondary err code: 12560

nt main err code: 511

TNS-00511: 无监听器

nt secondary err code: 61

nt OS err code: 0

-on MapX done very well, please rest assured that the use of Tracing not turned on. Tns error struct : nr err code : 0 ns main err code : 12541 TNS-12541 : TNS : None sniffers ns secondary err code : 12560 nt main err code : 511 TNS-00511 : no sniffers nt secondary err code : 61 nt OS err code : 0