题目内容：

平面坐标转化经纬度,求高手给C# 方法,将下列坐标转化成经纬度
53950.65966 98691.8174
53978.58712 98683.67092
53362.81266 98724.84873
53863.99434 101142.28989
48409.9036 99993.28906
50908.51168 98174.50808
49099.00161 98492.81168
52512.84237\x0598539.16967
53351.11115\x0598716.80958
51750.78065\x05100777.04986
51747.37379\x05100800.72085
51751.03526\x05100828.39794
51761.01429\x05100848.26565
51763.52895\x05100875.76738
51799.82924\x0599606.68054
53960.04626\x0598516.41725
52940.37434\x0598385.55078
51415.60828\x05100887.84154
52718.39066\x0598113.226
52542.09198\x0598108.36898
52855.44734\x0598633.82289
52854.8673\x0598634.34291
52852.80505\x0598658.28901
52830.66831\x0598686.15015
51666.11801\x05100025.7744
51576.32007\x05100110.36634
51684.53488\x05100016.75806
52636.69159\x05101048.78356
54219.35851\x0599337.31141
52895.52269\x0599786.95608
53594.98016\x0599531.0607
53793.77928\x0599097.43091
53842.72084\x0599201.58807
52529.97165\x0598107.17394
52208.58331\x0598495.08516
52607.86174\x0598105.80591
52127.80094\x05100741.29082
51702.23257\x0599999.80498
51672.28341\x0599918.96026
51668.73442\x0599905.13575
53959.0292\x0598524.13155
54012.52559\x0598501.31865
53851.30291\x0598570.66164
53927.77228\x0598440.77587
53959.25369\x0598668.27386
53957.63539\x0598736.75414
53965.42987\x0598763.66936
52892.10373\x0599626.01405
52494.40556\x0598222.1677
52488.76578\x0598273.5633
52914.88189\x0598349.55232
52222.88815\x0598543.73323
54494.01948\x0599532.40744
54313.27314\x0599521.09428
53890.96533\x0599526.48268
53900.05428\x0599558.18087
53647.07271\x0599517.52996
52211.93185\x0598464.02635
52442.37317\x0598162.74168
52498.69339\x0598489.41171
48623.97825\x0598538.91096
52216.48304\x0598500.56248
52267.88095\x0598582.7123
52881.17861\x0598371.06554
52925.25141\x0598722.95728
52473.44819\x0598403.17045
51889.40053\x05100760.95987
52216.39641\x0598550.4355
52264.98531\x0598568.69763
52935.21262\x0598516.9228
52929.39617\x0598688.93684
52495.55317\x0598242.66148
53154.08701\x0599463.47758
52839.30277\x0599511.26336
52849.19928\x0599500.65504
53491.58917\x0599514.15491
53743.08105\x0599532.09474
54099.26401\x0599607.20711
54062.40218\x0599560.58312
54086.57272\x0599533.97703

优质解答

看不出是什么坐标系,哪一个是X,Y,又没有带号,坐标位数不够.（X是7位,Y是8位,如果Y是6位要有中央子午线）