Technical questions and Answers
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  • What is the usage of:... In testcase() of unittest? What does any mean?

    What is the usage of:... In testcase() of unittest? What does any mean?

    class TestCase testMethodName = ... / type: str def init self, methodName: str = ... None: ... def setUp self None: ... def assertEqual self, first: A...

    2022-06-24 06:59【CSDN Q & A】

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  • main. c: (.Text+0xee): undefined reference to 'pop' collect2: error: LD returned 1 exit status

    main. c: (.Text+0xee): undefined reference to 'pop' collect2: error: LD returned 1 exit status

    To write Make file when , Compiler error : main.c: .text+0xee : Yes ‘pop’ Undefined references collect2: error: ld returned 1 exit status main:main...

    2022-06-24 06:59【CSDN Q & A】

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  • C language! The run page will flash out when running!! Let's have a look!

    C language! The run page will flash out when running!! Let's have a look!

    img https://img mid.csdnimg.cn/release/static/image/mid/ask/278939948446141.png?x oss process=image/auto orient,1/resize,w 320,m lfit C Language data...

    2022-06-24 06:59【CSDN Q & A】

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  • How to solve the problem of white screen flickering? Even if the transparent background is set

    How to solve the problem of white screen flickering? Even if the transparent background is set

    How to solve the white screen flicker , Setting a transparent background doesn't work , How to solve the white screen flicker , Setting a transparent...

    2022-06-24 06:59【CSDN Q & A】

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  • What do the exponential forms E and e here mean

    printf ' Right alignment , Exponential form :%10e n', 520000.0 ; printf ' Align left , Exponential form :% 10E n', 520000.0 ; Take the answer : %e do...

    2022-06-24 06:59【CSDN Q & A】

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  • Solving integral equations with variables

    Solving integral equations with variables

    img https://img mid.csdnimg.cn/release/static/image/mid/ask/278746948446149.png?x oss process=image/auto orient,1/resize,w 320,m lfit It is known th...

    2022-06-24 07:03【CSDN Q & A】

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  • What should I do if yanzhao.com can't get the link to the school website?

    url = ' http://yz.chsi.com.cn/zsml/queryAction.do' response = requests.post url, data=data, headers=header html = response.text Input date and header...

    2022-06-24 07:04【CSDN Q & A】

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  • A c++ question (multi school joint examination)

    Multi school joint examination 【 Test description 】 Now there is N Schools are conducting joint examinations , There are several schools in each sc...

    2022-06-24 07:04【CSDN Q & A】

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  • How does the structure of Android project package into app?

    How does the structure of Android project package into app?

    Android How can the project structure be packaged into APP? It seems that the project is composed of multiple structural modules and finally package...

    2022-06-24 07:04【CSDN Q & A】

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  • How does webstorm set the bootstrap auto prompt

    How does webstorm set the bootstrap auto prompt

    The phenomenon and background of the problem Want to do bootstrap Automatic prompt of , But I don't know how to do it This plug-in doesn't work ...

    2022-06-24 07:04【CSDN Q & A】

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  • Why can't Kali start the machine

    Why can't Kali start the machine

    img https://img mid.csdnimg.cn/release/static/image/mid/ask/060883058446191.png?x oss process=image/auto orient,1/resize,w 320,m lfit As soon as you...

    2022-06-24 07:04【CSDN Q & A】

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  • missing operate system

    I used to play computer , The computer suddenly went black missing operate system , Press the keyboard randomly and there is no response , I thought ...

    2022-06-24 07:04【CSDN Q & A】

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  • Luogu p1098 solution, sample can pass

    / include bits/stdc++.h using namespace std; char s 105 205 ; int main { int n=0,p1,p2,p3; cin p1 p2 p3; while ~scanf '%c', s n++ 1 {} for int i=0;i n...

    2022-06-24 07:04【CSDN Q & A】

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  • Although object f is an object created by the parent class, it is a constant and does not use the parent class to reference the child class object. Why can the override method value of the child class be output

    Although object f is an object created by the parent class, it is a constant and does not use the parent class to reference the child class object. Why can the override method value of the child class be output

    Ask the object f Although it is an object created by a parent class But it is a constant , There is no parent class to refer to a child class obj...

    2022-06-24 07:04【CSDN Q & A】

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  • Wechat applet development error: do not use empty rulesets

    Wechat applet development error: do not use empty rulesets

    Two pages have been added to the wechat applet development tool . On the first page .wxss There is no problem adding component styles to the file , O...

    2022-06-24 07:04【CSDN Q & A】

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  • About C language: if an error occurs after deleting ch=getchar() in the first for loop

    About C language: if an error occurs after deleting ch=getchar() in the first for loop

    When writing a topic img https://img mid.csdnimg.cn/release/static/image/mid/ask/360429058446137.jpg?x oss process=image/auto orient,1/resize,w 320,...

    2022-06-24 07:04【CSDN Q & A】

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  • How to solve the problem of Java?

    What I want to achieve Ask for one java and MySQL The train login view system of the database is simpler

    2022-06-24 07:14【CSDN Q & A】

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  • Why the 8-core 8g win7 32 virtual machine fails to recognize 4G memory after connecting to the virtual machine?

    Why the 8-core 8g win7 32 virtual machine fails to recognize 4G memory after connecting to the virtual machine?

    The phenomenon and background of the problem newly build 8 nucleus 8G win7 32 The virtual machine , After connecting the virtual machine, it is fo...

    2022-06-24 07:14【CSDN Q & A】

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  • Uni app calling interface click login operation does not take effect on the mobile terminal

    Uni app calling interface click login operation does not take effect on the mobile terminal

    uni app Call the interface on the mobile phone and click “ land ” The button doesn't respond .h5 You can log in , print to res. No response on the mo...

    2022-06-24 07:14【CSDN Q & A】

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  • How to solve the problem of error 5321 in the mixed programming call of C # and Halcon?

    How to solve the problem of error 5321 in the mixed programming call of C # and Halcon?

    c/ And halcon Mixed programming calls error / 5321 How to solve the problem of ? img https://img mid.csdnimg.cn/release/static/image/mid/ask/39198015...

    2022-06-24 07:46【CSDN Q & A】

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