首先,你y==3的地方忘记了双引号。
其实调出来很简单,直接在bilv函数里加一个global p的声明,将p声明为全局变量就可以了。(我看你其他的全局变量用的也挺对的呀,应该贯通一下)
import re
money = input()lower()
tmp=refindall('usd|rmb',money)
if len(tmp) != 1:
print('wrong')
money=resub(tmp[0],'',money)
try:
num=float(money)
if 'usd' in tmp:
print('RMB%2f'%(num678))
else:
print('USD%2f'%(num/678))
except:
print('wrong')
1、系统分析目标网页
2、html标签数据解析方法
3、海量数据一键保存
get_attribute: 获取标签属性名
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可以转换。
程序可以接受人民币或美元输入,转换为美元或人民币输出人民币采用¥符号或RMB表示,美元采用$或USD表示,符号和数值之间没有空格输出经过汇率计算的美元或人民币的金额,格式与输入一样,结果保留两位小数。
Python是一种跨平台的计算机程序设计语言是一个高层次的结合了解释性、编译性、互动性和面向对象的脚本语言最初被设计用于编写自动化脚本(shell),随着版本的不断更新和语言新功能的添加,越多被用于独立的、大型项目的开发Python的应用领域还是非常广泛的,因为Python是一种解释型脚本语言,所以可以应用的领域就非常的丰富,比如:Web和Internet开发,科学计算和统计,人工智能,桌面界面开发,软件开发,后端开发。
cnt = 0
for i in xrange(100 / 1 + 1):
for j in xrange((100 - i 1) / 5 + 1):
for k in xrange ((100 - i 1 + j 5) / 10 + 1):
if i 1 + j 5 + k 10 == 100:
print "1:", i, "5:", j, "10:", k
cnt += 1
print cnt
结果如下,总共121种
1: 0 5: 0 10: 10
1: 0 5: 2 10: 9
1: 0 5: 4 10: 8
1: 0 5: 6 10: 7
1: 0 5: 8 10: 6
1: 0 5: 10 10: 5
1: 0 5: 12 10: 4
1: 0 5: 14 10: 3
1: 0 5: 16 10: 2
1: 0 5: 18 10: 1
1: 0 5: 20 10: 0
1: 5 5: 1 10: 9
1: 5 5: 3 10: 8
1: 5 5: 5 10: 7
1: 5 5: 7 10: 6
1: 5 5: 9 10: 5
1: 5 5: 11 10: 4
1: 5 5: 13 10: 3
1: 5 5: 15 10: 2
1: 5 5: 17 10: 1
1: 5 5: 19 10: 0
1: 10 5: 0 10: 9
1: 10 5: 2 10: 8
1: 10 5: 4 10: 7
1: 10 5: 6 10: 6
1: 10 5: 8 10: 5
1: 10 5: 10 10: 4
1: 10 5: 12 10: 3
1: 10 5: 14 10: 2
1: 10 5: 16 10: 1
1: 10 5: 18 10: 0
1: 15 5: 1 10: 8
1: 15 5: 3 10: 7
1: 15 5: 5 10: 6
1: 15 5: 7 10: 5
1: 15 5: 9 10: 4
1: 15 5: 11 10: 3
1: 15 5: 13 10: 2
1: 15 5: 15 10: 1
1: 15 5: 17 10: 0
1: 20 5: 0 10: 8
1: 20 5: 2 10: 7
1: 20 5: 4 10: 6
1: 20 5: 6 10: 5
1: 20 5: 8 10: 4
1: 20 5: 10 10: 3
1: 20 5: 12 10: 2
1: 20 5: 14 10: 1
1: 20 5: 16 10: 0
1: 25 5: 1 10: 7
1: 25 5: 3 10: 6
1: 25 5: 5 10: 5
1: 25 5: 7 10: 4
1: 25 5: 9 10: 3
1: 25 5: 11 10: 2
1: 25 5: 13 10: 1
1: 25 5: 15 10: 0
1: 30 5: 0 10: 7
1: 30 5: 2 10: 6
1: 30 5: 4 10: 5
1: 30 5: 6 10: 4
1: 30 5: 8 10: 3
1: 30 5: 10 10: 2
1: 30 5: 12 10: 1
1: 30 5: 14 10: 0
1: 35 5: 1 10: 6
1: 35 5: 3 10: 5
1: 35 5: 5 10: 4
1: 35 5: 7 10: 3
1: 35 5: 9 10: 2
1: 35 5: 11 10: 1
1: 35 5: 13 10: 0
1: 40 5: 0 10: 6
1: 40 5: 2 10: 5
1: 40 5: 4 10: 4
1: 40 5: 6 10: 3
1: 40 5: 8 10: 2
1: 40 5: 10 10: 1
1: 40 5: 12 10: 0
1: 45 5: 1 10: 5
1: 45 5: 3 10: 4
1: 45 5: 5 10: 3
1: 45 5: 7 10: 2
1: 45 5: 9 10: 1
1: 45 5: 11 10: 0
1: 50 5: 0 10: 5
1: 50 5: 2 10: 4
1: 50 5: 4 10: 3
1: 50 5: 6 10: 2
1: 50 5: 8 10: 1
1: 50 5: 10 10: 0
1: 55 5: 1 10: 4
1: 55 5: 3 10: 3
1: 55 5: 5 10: 2
1: 55 5: 7 10: 1
1: 55 5: 9 10: 0
1: 60 5: 0 10: 4
1: 60 5: 2 10: 3
1: 60 5: 4 10: 2
1: 60 5: 6 10: 1
1: 60 5: 8 10: 0
1: 65 5: 1 10: 3
1: 65 5: 3 10: 2
1: 65 5: 5 10: 1
1: 65 5: 7 10: 0
1: 70 5: 0 10: 3
1: 70 5: 2 10: 2
1: 70 5: 4 10: 1
1: 70 5: 6 10: 0
1: 75 5: 1 10: 2
1: 75 5: 3 10: 1
1: 75 5: 5 10: 0
1: 80 5: 0 10: 2
1: 80 5: 2 10: 1
1: 80 5: 4 10: 0
1: 85 5: 1 10: 1
1: 85 5: 3 10: 0
1: 90 5: 0 10: 1
1: 90 5: 2 10: 0
1: 95 5: 1 10: 0
1: 100 5: 0 10: 0
121
为什么重新问一遍,我的程序有什么问题么?
import remoney = input()lower()
tmp=refindall('usd|rmb',money)
if len(tmp)==0 or len(tmp)>1:
print('wrong')
money=resub(tmp[0],'',money)
try:
num=float(money)
if 'usd' in tmp:
print('RMB%2f'%(num678))
else:
print('USD%2f'%(num/678))
except:
print('wrong')
python抓取汇率
1 # -- coding: utf-8 -- 2 """ 3 获取实时汇率 4 Created on Fri Oct 18 13:11:40 2013 5 6 @author: alala 7 """ 8 9 import >
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