a = escape('這是一串文字');
alert(a);

%u8FD9%u662F%u4E00%u4E32%u6587%u5B57

# encoding=utf-8
import json
a = '這是一串文字'
print json.dumps(a)

"/u8fd9/u662f/u4e00/u4e32/u6587/u5b57"

# encoding=utf-8
import json
 
# js escape 字符串編碼
c = '%u8FD9%u662F%u4E00%u4E32%u6587%u5B57'
 
# 還原Json對(duì)象
jsonObj =  '"'+"".join([(i and "http://"+i) for i in c.split('%')])+'"'
 
print json.loads(jsonObj)

# encoding=utf-8
c = '%u8FD9%u662F%u4E00%u4E32%u6587%u5B57'
print "".join([(len(i)>0 and unichr(int(i,16)) or "") for i in c.split('%u')])