python保留两位小数: In [1]: a = 5.026 In [2]: b = 5.000 In [3]: round(a,2) Out[3]: 5.03 In [4]: round(b,2) Out[4]: 5.0 In [5]: '%.2f' % a Out[5]: '5.03' In [6]: '%.2f' % b Out[6]: '5.00' In [7]: float('%.2f' % a) Out[7]: 5.03 In [8]: float('%.2f' % b) Out[…
#数字转字符保留几位小数 by gisoracle #数字转字符保留几位小数 by gisoracle def floattostr(num,xsnum): if xsnum==0: return str(int(num)) nd=round(num,xsnum) nstr=str(nd) idx=nstr.index('.') print idx p=len(nstr)-idx-1 print p n=xsnum-p print n s="" for i in range(n): s…