The Return Of iXhan.com

最新推荐文章于 2022-06-04 20:36:32 发布
最新推荐文章于 2022-06-04 20:36:32 发布 · 137 阅读 · 0

iXhan.com已重新启动并将发布更多文章。敬请期待。

I heard a incredible news recently that iXhan.com has return !

 

从此以后更多文章将在 iXhan.com 上出现，敬请赏脸 ：）

ca.rar_return
09-24
some C libraries return -1 in case of overflow, but they will also do that if the format spec is invalid. We assume ADB is not buggy enough to trigger that last case.
ucs2_string.rar_return
09-24
Return the number of bytes is the length of this string Note: this is NOT the same as the number of unicode characters.
ValueError: The view user.views.login_handler didn‘t return an HttpResponse object.
Ducunyu的博客
09-26 1731
ValueError: The view user.views.login_handler didn’t return an HttpResponse object.It returned None instead. 重定向到course_views视图，return redirect(reverse(‘course_index’)) ，登录成功
TypeError: The view function for did not return a valid response. The function either returned None
m0_47548313的博客
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TypeError: The view function for ‘uploadImg’ did not return a valid response. The function either returned None or ended without a return statement. 解决方法： ①给函数写返回值（return一个值） ②看其他同名函数是否也return ③看看是不是代码少写了method 具体原博客添加链接描述 可能是前端没写也可能是后端没写 ④函数只有在if的时候有返回值，但
Check the render method of `RoadPage`.
zb0002011的博客
04-24 4851
排查了好久，然后发现是当前RoadPage组件引用的组件没有添加export default. ES6 export 和 export default的区别 ES6中 export 和 export default 与 import使用的区别，使用 react native 代码详解 一、使用export 和 import 1、export 定义导出一个子组件 Greeting i...
C语言 return没有返回值.
weixin_30752377的博客
07-28 2092
#include <stdio.h>#include <stdlib.h>void foo(void){ printf("into the foo function\n"); return;//结束子函数调用，返回主函数 printf("out the foo function\n");}int main(){ foo(); print...
Virtual Memory II: the return of objrmap
奋斗中拥有
08-30 1721
Virtual Memory II: the return of objrmapAndrea Arcangeli not only wants to make the Linux kernel scale to and beyond 32GB of memory on 32-bit processors; he seems to be in a real hurry. There are, i
Django报错 “view didn't return an HttpResponse object.”
Candy_Lena的博客
06-25 2万+
检查views中最后有没有返回值，可能是return错位了。
c语言main不写return,main函数的末尾没有return语句会有什么影响
weixin_30097621的博客
05-19 3096
c语言中，如果main函数的末尾没有return语句将会有什么影响?":问题的本质回答这个问题其实只要理解一个东西就行了：那就是带有返回值的函数请务必提供返回值，这个是基本约定也是编程习惯，如果大家都遵守，你不遵守，各种奇葩和头疼的后果就迟早会来，不管是 main 也好，其他函数也好。所以，准大一这个时候一定要从现在开始养成习惯，遵守语言的基本约定。main 的标准声明main 的标准声明是什么？...
springBoot整合redis出现Consider defining a bean of type com.abc.abcService in your configuration
weixin_43183026的博客
05-24 2万+
这里写自定义目录标题springBoot整合redis,出现Consider defining a bean of type 'com.***.***.service.***' in your configuration.RedisConnectFactory注入不了报红可能会导致的问题!?为什么会出现这样的问题?! springBoot整合redis,出现Consider defining a bean of type ‘com.***.***.service.***’ in your configura
Bean named ‘userServiceImpl‘ is expected to be of type ‘com.woniu.service.UserServiceImpl‘ but was a
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weixin_55229531的博客
05-09 5万+
Bean named 'userServiceImpl' is expected to be of type 'com.woniu.service.UserServiceImpl' but was actually of type 'com.sun.proxy.$Proxy40'
C++：error C2228: left of '.str' must have class/struct/union
netyeaxi的专栏
10-29 1万+
error C2228
Axis_coords.rar_return
07-15
IT Return the Co-ordinates of the two pixels moment of binary image is calculated
Cannot deserialize instance of `java.lang.String` out of START_ARRAY token； nested exception is com.
小爽帅到拖网速的博客
12-12 3097
使用gitee的WebHooks时测试报错： {“timestamp”:“2021-12-12T13:21:26.444+0000”,“status”:400,“error”:“Bad Request”,“message”:“Invalid JSON input: Cannot deserialize instance of java.lang.String out of START_ARRAY token; nested exception is com.fasterxml.jackson.databin
JAVA毕业设计含文档和代码springboot凉州区助农惠农服务平台
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【四轴飞行器的位移控制】控制四轴飞行器的姿态和位置设计内环和外环PID控制回路（Simulink仿真实现）
11-30
【四轴飞行器的位移控制】控制四轴飞行器的姿态和位置设计内环和外环PID控制回路（Simulink仿真实现）内容概要：本文围绕四轴飞行器的位移控制展开，重点介绍如何通过设计内环和外环PID控制回路来实现对其姿态和位置的精确控制。外环负责根据期望位移生成姿态指令，内环则依据这些指令调节飞行器的实际姿态，从而实现稳定的位置跟踪。整个控制系统在Simulink环境中进行建模与仿真，便于验证控制策略的有效性与鲁棒性。文中详细阐述了四轴飞行器的动力学模型、控制结构设计原理以及PID参数整定方法，帮助读者深入理解飞行器控制的核心机制。; 适合人群：具备自动控制理论基础和Simulink仿真经验的高校学生、科研人员及从事无人机控制开发的工程师。; 使用场景及目标：①用于教学实践中帮助学生掌握多变量控制系统的设计方法；②为无人机姿态与位置控制系统的开发提供可复现的仿真框架；③支持进一步研究高级控制算法（如串级控制、自适应控制）在飞行器中的应用。; 阅读建议：建议读者结合Simulink模型同步操作，动手调试PID参数以观察系统响应变化，加深对内外环协同控制机制的理解，并可在此基础上拓展为非线性或智能控制策略的研究。
【嵌入式开发】Rust与C++互操作技术指南：基于FFI与bindgen的混合编程及渐进式迁移方案设计
11-30
内容概要：本文是一份关于在嵌入式环境中实现Rust与C++互操作的工程实践指南，系统介绍了如何将Rust逐步集成到现有的C/C++驱动框架中。内容涵盖互操作机制（如FFI、extern "C"、bindgen工具）、构建系统集成（Cargo与Make/CMake等）、内存与所有权管理、中断处理、调试测试流程及性能优化，并提供完整的实战案例——用Rust实现I2C传感器驱动并集成到C项目中。文章强调安全性、兼容性和渐进式迁移策略，附有大量可运行代码和常见问题解决方案。; 适合人群：具备一定嵌入式开发经验，熟悉C/C++，并希望引入Rust提升代码安全性的中高级工程师或技术团队；适合正在考虑语言迁移或模块重构的开发者； 使用场景及目标：①在现有C/C++项目中安全嵌入Rust模块，降低内存安全隐患；②实现高效跨语言调用，优化关键组件的可靠性与维护性；③通过bindgen自动化绑定、联合构建与调试，完成实际驱动开发与性能验证； 阅读建议：建议结合示例代码动手实践，重点关注FFI边界设计、内存安全规则和构建脚本配置，在真实嵌入式平台上进行调试与测试以掌握全流程。
zhongyanghan_Risk-prediction-of-credit-card-transaction-fraud-based-on-L
11-30
zhongyanghan_Risk-prediction-of-credit-card-transaction-fraud-based-on-L
Garfield-0927_JavaExperiment_34704_1763630740306.zip
11-30
Garfield-0927_JavaExperiment_34704_1763630740306
Create a function pixel_flip(lst, orig_lst, budget, results, i=0) that uses recursion to generate all possible new unique images from the input orig_lst, following these rules: • The input lst is the current list being processed. Initially, this will be the same as orig_lst which is the original flattened image. • The input budget represents the number of pixels that can still be flipped. When the budget reaches 0, no more pixels can be flipped. • The input results is a list of resulting flattened images with flipped pixels. Initially, this will be an empty list. • The input i represents the index of the pixel being processed, by default set to 0, which is used to drive the recursive function towards its base case (i.e., initially starting from i=0). At termination of the function, the argument results should contain all possibilities of the input orig_lst by only flipping pixels from 0 to 1 under both the budget and the adjacency constraints. fill code at #TODO def pixel_flip(lst: list[int], orig_lst: list[int], budget: int, results: list, i: int = 0) -> None: """ Uses recursion to generate all possibilities of flipped arrays where a pixel was a 0 and there was an adjacent pixel with the value of 1. :param lst: 1D list of integers representing a flattened image . :param orig_lst: 1D list of integers representing the original flattened image. :param budget: Integer representing the number of pixels that can be flipped . :param results: List of 1D lists of integers representing all possibilities of flipped arrays， initially empty. :param i: Integer representing the index of the pixel in question. :return: None. """ #TODO
05-25
Here's the code for the function: ```python def pixel_flip(lst: list[int], orig_lst: list[int], budget: int, results: list, i: int = 0) -> None: """ Uses recursion to generate all possibilities of flipped arrays where a pixel was a 0 and there was an adjacent pixel with the value of 1. :param lst: 1D list of integers representing a flattened image. :param orig_lst: 1D list of integers representing the original flattened image. :param budget: Integer representing the number of pixels that can be flipped. :param results: List of 1D lists of integers representing all possibilities of flipped arrays， initially empty. :param i: Integer representing the index of the pixel in question. :return: None. """ # Base case: if budget is 0 or all pixels have been processed, add lst to results and return if budget == 0 or i == len(lst): results.append(lst) return # If the current pixel is 0 and has a neighboring pixel with value 1, flip it and call the function recursively if lst[i] == 0 and has_adjacent_1(lst, i): new_lst = lst.copy() new_lst[i] = 1 pixel_flip(new_lst, orig_lst, budget - 1, results, i + 1) # Call the function recursively without flipping the current pixel pixel_flip(lst, orig_lst, budget, results, i + 1) def has_adjacent_1(lst: list[int], i: int) -> bool: """ Returns True if the current pixel at index i has a neighboring pixel with value 1. :param lst: 1D list of integers representing a flattened image. :param i: Integer representing the index of the pixel in question. :return: Boolean. """ if i > 0 and lst[i-1] == 1: # Check left neighbor return True if i < len(lst)-1 and lst[i+1] == 1: # Check right neighbor return True if i >= int(len(lst)**0.5) and lst[i-int(len(lst)**0.5)] == 1: # Check top neighbor return True if i < len(lst)-int(len(lst)**0.5) and lst[i+int(len(lst)**0.5)] == 1: # Check bottom neighbor return True return False ``` The `pixel_flip` function uses recursion to generate all possible new unique images from the input `orig_lst`, following the rules specified in the prompt. The function takes in the current list being processed (`lst`), the original flattened image (`orig_lst`), the number of pixels that can still be flipped (`budget`), a list of resulting flattened images with flipped pixels (`results`), and the index of the pixel being processed (`i`). The base case is when the budget is 0 or all pixels have been processed. In this case, `lst` is added to `results` and the function returns. Otherwise, the function checks if the current pixel is 0 and has a neighboring pixel with value 1. If so, it creates a copy of `lst`, flips the current pixel to 1, and calls the function recursively with the new list and a decreased budget. The function also increments `i` to process the next pixel. Finally, the function calls itself recursively without flipping the current pixel, again incrementing `i`. The `has_adjacent_1` function is a helper function that returns `True` if the current pixel at index `i` has a neighboring pixel with value 1. It checks the left, right, top, and bottom neighbors of the current pixel using simple indexing calculations. Note that this function does not guarantee that all possible unique images will be generated if the budget is large enough. This is because there may be multiple ways to flip pixels that result in the same image. However, it should generate a reasonable number of unique images for small budgets and simple images.
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