按key升序，key不为sign，value不为空，再把key和value拼装成x=a&y=b格式，然后使用HmacSHA1算法生成签名
import json,hashlib,hmac,base64
def sign(data):
date_new=''
for key,value in sorted(data.items()):
if key!="sign" and value:
date_new+= key + "=" +str(value)+"&"
sk="wwwsss123"
#生成签名
hashing=hmac.new(bytes(sk,encoding='utf-8'),bytes(date_new.strip('&'),encoding='utf-8'),hashlib.sha1).hexdigest()
print(date_new.strip('&'))
return hashing
data={"name":"wangli","mobile":18200000000,"sn":"","sign":""}
print(sign(data))
"C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test01.py
mobile=18200000000&name=wangli
b976c851b1419f52eedfd3853f4f4d1c90ed3b24
Process finished with exit code 0
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