80坐标转换WGS84坐标系

楼上说的大概是对的，必须知道中央子午线才能实现平面坐标向经纬度坐标的转换，根据你提供的120度中央子午线可以判断你提供的为3度带坐标，转换为经纬度坐标为：
119:41:49.167236E,036:23:21.401062N,
119:41:49.106812E,036:23:23.178252N,
119:41:34.562892E,036:23:15.598212N,
119:41:32.520057E,036:23:15.398692N,
119:41:32.277481E,036:23:16.881258N,
119:41:32.723993E,036:21:35.232887N,
119:41:30.816382E,036:21:35.388335N,
119:41:36.997981E,036:21:35.363645N,
119:41:38.435444E,036:21:12.647222N,
119:41:38.660647E,036:21:10.001866N,
119:41:35.841660E,036:20:37.367089N,
119:41:36.517004E,036:20:37.769355N,
119:41:40.981132E,036:20:38.022316N,
119:41:22.702545E,036:20:00.232502N,
119:41:20.735973E,036:20:00.109625N,