def half_seek(point, seqence):
a = len(readsx)
b = a/2
if point <= readsx[b]:
c = readsx[:b + 1]
a = len(c)
b = a/2
if point <= c[b]:
c = c[:b + 1]
a = len(c)
b = a/2
else:
c = c[b:]
a = len(c)
b = a/2
if point <= c[b]:
c = c[:b + 1]
a = len(c)
b = a/2
else:
c = c[b:]
a = len(c)
b = a/2
if point <= c[b]:
else:
c = readsx[b:]
a = len(c)
b = a/2
if point <= c[b]:
c = c[:b + 1]
a = len(c)
b = a/2
else:
c = c[b:]
a = len(c)
b = a/2
if point <= c[b]:
c = c[:b + 1]
a = len(c)
b = a/2
格式不对。。。。。我就不粘贴了。。。。怎么写个循环呢?
我是想写个函数以后用,目的是给一个值,给了一个由小到大的数列list形式,确定这个给的数能排哪个位置?