网上的贷款计算器没法计算提前还贷情况，自己些一个
# -*- coding: cp936 -*-
dk=176648#贷款余额
lv=0.04158#贷款利率
tq=5600 #提前还款额
qs=1
ljlx=0
ljbj=0
while dk >0:
lx=dk*lv/12
if dk > tq:
bj=tq - lx
else:
bj=dk
ljbj=ljbj+bj
ljlx=ljlx+lx
print "期数:"+ str(qs)+"贷款余额"+str(dk)+"本金:" +str(bj)+"利息:"+str(lx)
dk=dk-bj
qs=qs+1
print "累计本金:" +str(ljbj)+"累计利息:"+str(ljlx)
结果如下：
期数:1贷款余额176648本金:4987.91468利息:612.08532
期数:2贷款余额171660.08532本金:5005.19780437利息:594.802195634
期数:3贷款余额166654.887516本金:5022.54081476利息:577.459185242
期数:4贷款余额161632.346701本金:5039.94391868利息:560.056081319
期数:5贷款余额156592.402782本金:5057.40732436利息:542.59267564
期数:6贷款余额151534.995458本金:5074.93124074利息:525.068759261
期数:7贷款余额146460.064217本金:5092.51587749利息:507.484122512
期数:8贷款余额141367.54834本金:5110.161445利息:489.838554997
期数:9贷款余额136257.386895本金:5127.86815441利息:472.13184559
期数:10贷款余额131129.51874本金:5145.63621757利息:454.363782435
期数:11贷款余额125983.882523本金:5163.46584706利息:436.534152941
期数:12贷款余额120820.416676本金:5181.35725622利息:418.642743781
期数:13贷款余额115639.059419本金:5199.31065911利息:400.689340888
期数:14贷款余额110439.74876本金:5217.32627055利息:382.673729454
期数:15贷款余额105222.42249本金:5235.40430607利息:364.595693927
期数:16贷款余额99987.0181836本金:5253.54498199利息:346.455018006
期数:17贷款余额94733.4732016本金:5271.74851536利息:328.251484644
期数:18贷款余额89461.7246863本金:5290.01512396利息:309.984876038
期数:19贷款余额84171.7095623本金:5308.34502637利息:291.654973633
期数:20贷款余额78863.3645359本金:5326.73844188利息:273.261558117
期数:21贷款余额73536.6260941本金:5345.19559058利息:254.804409416
期数:22贷款余额68191.4305035本金:5363.71669331利息:236.283306695
期数:23贷款余额62827.7138102本金:5382.30197165利息:217.698028352
期数:24贷款余额57445.4118385本金:5400.95164798利息:199.04835202
期数:25贷款余额52044.4601905本金:5419.66594544利息:180.33405456
期数:26贷款余额46624.7942451本金:5438.44508794利息:161.554912059
期数:27贷款余额41186.3491572本金:5457.28930017利息:142.71069983
期数:28贷款余额35729.059857本金:5476.1988076利息:123.801192404
期数:29贷款余额30252.8610494本金:5495.17383646利息:104.826163536
期数:30贷款余额24757.6872129本金:5514.21461381利息:85.7853861928
期数:31贷款余额19243.4725991本金:5533.32136744利息:66.678632556
期数:32贷款余额13710.1512317本金:5552.49432598利息:47.5056740178
期数:33贷款余额8157.6569057本金:5571.73371882利息:28.2662811782
期数:34贷款余额2585.92318688本金:2585.92318688利息:8.96022384253
累计本金:176648.0累计利息:10746.8834107
呵呵，房奴的生活还有34个月.希望政府不要加息
