frey fzdp
fzdp
/ upyun.js
Created
December 1, 2022 04:08
又拍云FORM API结合axios上传示例，对着官方小程序库稍微改了下就能用：https://github.com/upyun/wechat-sdk
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| /** | |
| * const upyun = new Upyun({ | |
| * bucket: "test-bucket", | |
| * operator: "admin-user", | |
| * getSignatureUrl: "https://example.com/upyun/getSignature" | |
| * }); | |
| * | |
| * upyun.upload({ | |
| * file: file, | |
| * remotePath: '/dev/{year}/{mon}/{day}/{filename}{.suffix}', |
fzdp
/ expression evaluator.py
Created
October 21, 2019 14:28
expression evalutor in recursive way using Python
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| class Expression: | |
| operator_precedence = {'+': 0, '-': 0, '*': 1, '/': 1} | |
| operator_calculator = { | |
| '+': lambda v1,v2 : v1 + v2, | |
| '-': lambda v1,v2 : v1 - v2, | |
| '*': lambda v1,v2 : v1 * v2, | |
| '/': lambda v1,v2 : v1 / v2 | |
| } | |
| valid_operators = ['+','-','*','/'] |