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Python 'takes exactly 1 argument (2 given)' Python error
Python,定义urlConfig 接收参数,正常传递参数时,出现,多给了一个参数的错误问题, 定义class的函数之后,在调用的时候出现“'takes exactly 1 argument (2 given)' Python error”。 查询Interesting ‘takes exactl ...
分类:编程语言   时间:2019-10-18 10:54:48    阅读次数:97
【leetcode】1224. Maximum Equal Frequency
题目如下: Given an array nums of positive integers, return the longest possible length of an array prefix of nums, such that it is possible to remove exac ...
分类:其他好文   时间:2019-10-16 11:43:10    阅读次数:119
【leetcode】1215.Stepping Numbers
题目如下: A Stepping Number is an integer such that all of its adjacent digits have an absolute difference of exactly 1. For example, 321 is a Stepping Nu ...
分类:其他好文   时间:2019-10-07 09:33:56    阅读次数:80
[Mathematics][MIT 18.03] Proof of a Theory about the Solution to Second-order Linear Homogeneous Differential Equation
Edit: I suddenly found that this theorem is called Abel Identity. And the proof here is exactly the same as what he did. At first, I'd like to say tha ...
分类:其他好文   时间:2019-10-04 21:03:48    阅读次数:98
CodeForces (字符串从字母a开始删除k个字母)
You are given a string s consisting of n lowercase Latin letters. Polycarp wants to remove exactly k characters (k≤n) from the string s. Polycarp uses ...
分类:其他好文   时间:2019-10-03 20:23:26    阅读次数:94
C. Almost Equal ( Codeforces Round #580 (Div. 2) )
output standard output output standard output output You are given integer nn. You have to arrange numbers from 11 to 2n2n, using each of them exactly ...
分类:其他好文   时间:2019-10-03 10:19:29    阅读次数:88
A - Perfect Team CodeForces - 1221C
You may have already known that a standard ICPC team consists of exactly three members. The perfect team however has more restrictions. A student can ...
分类:其他好文   时间:2019-10-03 00:46:44    阅读次数:101
项目中出现的问题
error:The template root requires exactly one element. 解决办法:Vue只允许模板里存在一个根节点 组件化的vue里的data为什么要用data函数,用return语句? 答:项目里用到data采取函数式的方法,主要是因为如果用官网定义的data对 ...
分类:其他好文   时间:2019-10-02 12:19:31    阅读次数:111
CodeForce 117C Cycle DFS
A tournament is a directed graph without self-loops in which every pair of vertexes is connected by exactly one directed edge. That is, for any two ve ...
分类:其他好文   时间:2019-09-30 14:35:47    阅读次数:113
Python之可变参数,*参数,**参数,以及传入*参数,进行解包
1.定义了一个需要两个参数的函数 如果传一个参数调用,print_str("hello"),那么一定会抛出异常的(明确告诉你需要准确的两个参数,现在只确定给了一个参数) TypeError: print_str() takes exactly 2 arguments (1 given) 2、上面的问 ...
分类:编程语言   时间:2019-09-27 19:15:33    阅读次数:118
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