小编jjr*_*000的帖子

我需要以下帮助.

我想以这种方式舍入计算数字:

示例:132转到150,122转到100

• 0-24,99变为0
• 25-74,99到50
• 75-124,99变为100
• 等等..

我需要在JS中执行此操作,因为用户将插入一些值,然后将计算该数字,并且此数字需要进行四舍五入.

嗨,我在python中编码试图为学校项目制作一个用户友好的货币兑换应用程序,但遇到了错误,试图解码json的汇率.我正在使用的代码是:

import urllib.request
import json
(str) = "http://rate-exchange.appspot.com/currency?from=FRM&to=TO&q=AM";
(str) = (str.replace("FRM", "GBP"))
(str) = (str.replace("TO", "USD"))
url = (str.replace("AM", "20"))
f = urllib.request.urlopen(url)
data = (f.read(100))
print (data)
json_input = data
decoded = json.loads(json_input)
print ("conversion is: ", decoded["v"])

而我得到的错误是:

b'{"to": "USD", "rate": 1.66215, "from": "GBP", "v": 33.243000000000002}'
Traceback (most recent call last):
File "C:\Users\jay\My Cubby\get qure.py", line 12, in <module>
decoded = json.loads(json_input)
File "C:\Python33\lib\json\__init__.py", line 309, in loads
return _default_decoder.decode(s)
File "C:\Python33\lib\json\decoder.py", line 352, in decode
obj, end …