请大神帮忙把XY坐标转换成经纬度，谢谢

更新时间2018-11-29 11:48:49

西安坐标系 X:39553447.369，Y:2963044.367;

X:39549050.275，Y:2965668.260;

X:39552261.154，Y:2960249.092;

X:39549369.794，Y:2965818.523;

西安80坐标系

X:39553447.369 = 117°32'14.731265''E， Y:2963044.367 = 26°46'37.477970''N;

X:39549050.275 = 117°29'35.935229''E， Y:2965668.260 = 26°48'03.306321''N;

X:39552261.154 = 117°31'31.375336''E， Y:2960249.092 = 26°45'06.821555''N;

X:39549369.794 = 117°29'47.524781''E， Y:2965818.523 = 26°48'08.147875''N;