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  • while loop

    2017-11-08 19:57:00
    while True: print("你是风儿我是沙,缠缠绵绵到天涯...",count) count +=1 # 相当于 count = count +1 其实除了时间,没有上面是永恒的,死loop还是少写为好 上面的代码循环100次就退出吧 ...

    有一种循环叫死循环,一经触发,就运行个天荒地老、海枯石烂

    海枯石烂代码

    count = 0
    while True:
        print("你是风儿我是沙,缠缠绵绵到天涯...",count)
        count +=1    # 相当于 count = count +1

    其实除了时间,没有上面是永恒的,死loop还是少写为好

    上面的代码循环100次就退出吧

    count = 0
    while True:
        print("你是风儿我是沙,缠缠绵绵到天涯...",count)
        count +=1
        if count == 100:
            print("去你妈的风和沙,你们这些脱了裤子是人,穿上裤子是鬼的臭男人..")
            break
    View Code

    回到上面的for循环的例子,如何实现让用户不断的才年龄,但只给最多3次机会,再猜不对就退出程序。

    #!/usr/bin/env python
    # -*- coding: utf-8 -*-
     
     
    my_age = 28
     
    count = 0
    while count < 3:
        user_input = int(input("input your guess num:"))
     
        if user_input == my_age:
            print("Congratulations, you got it !")
            break
        elif user_input < my_age:
            print("Oops,think bigger!")
        else:
            print("think smaller!")
        count += 1 #每次loop 计数器+1
    else:
        print("猜这么多次都不对,你个笨蛋.")
    View Code

     

    转载于:https://www.cnblogs.com/lzhn/p/7805857.html

    展开全文
  • <div><p>Hi, I saw a conditional break statement inside the infinite loop. I converted a while loop to do-while loop</p><p>该提问来源于开源项目:jMonkeyEngine/jmonkeyengine</p></div>
  • Do While Loop

    2020-12-30 08:52:50
    Having a Do While loop with a condition and as bonus an internal counter for first iteration behavior etc, would be a real clean approach for this. The condition could be falsified by the activity....
  • <div><p>Change for loop to a while loop so that we don't skip items and overshoot the end of the container when erasing. </p><p>该提问来源于开源项目:swri-robotics/mapviz</p></div>
  • Oracle/PLSQL While Loop

    2019-01-31 12:49:00
    Oracle/PLSQL: While Loop The syntax for the WHILE Loop is: WHILE conditionLOOP {.statements.}END LOOP; You would use a WHILE Loop when you are not sure how many times you will execute th...
     
    Oracle/PLSQL: While Loop
     
    The syntax for the WHILE Loop is:
    WHILE condition
    LOOP
         {.statements.}
    END LOOP;
    You would use a WHILE Loop when you are not sure how many times you will execute the loop body. Since the WHILE condition is evaluated before entering the loop, it is possible that the loop body may not execute even once.
    译:当你不确定循环体有多少次的时候,可以使用WHILE LOOP。因为在进入循环以前,WHILE的条件是先给的,因为可能循环体不止执行一次。
    Let's take a look at an example:
    WHILE monthly_value <= 4000
    LOOP
         monthly_value := daily_value * 31;
    END LOOP;
    In this example, the WHILE Loop would terminate once the monthly_value exceeded 4000.
    译:在该示例中,WHILE循环将会在monthly_value的值达到4000时终止。
     

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    转载于:https://www.cnblogs.com/skiwdhwhssh/p/10341504.html

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  • <div><p>Considering we know that the variable <code>firstLine</code> is only true on the first pass of the while loop, we are able to take it out of the while loop. As the while loop is very expensive...
  • PL/SQL WHILE LOOP语句

    2018-03-22 16:39:00
    只要给定条件为真,PL/SQL编程语言中的WHILE LOOP语句重复执行目标语句。 语法 WHILE LOOP语句的语法如下 - WHILE condition LOOP sequence_of_statements END LOOP; 示例 以下是有关WHILE LOOP语句的...

    只要给定条件为真,PL/SQL编程语言中的WHILE LOOP语句重复执行目标语句。

    语法

    WHILE LOOP语句的语法如下 -

    WHILE condition LOOP 
       sequence_of_statements 
    END LOOP;
    

    示例

    以下是有关WHILE LOOP语句的应用示例 -

    SET SERVEROUTPUT ON SIZE 1000000;
    DECLARE 
       a number(2) := 10; 
    BEGIN 
       WHILE a < 20 LOOP 
          dbms_output.put_line('value of a: ' || a); 
          a := a + 1; 
       END LOOP; 
    END; 
    /
    

    执行上面示例代码,得到以下结果 -


    转载于:https://www.cnblogs.com/youseiraws/p/8624766.html

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  • <div><p>I created an infinite while loop for debugging reasons (printed out a variable, then did nothing). Nothing I did would exit, and I was forced to click "force exit" on the Not ...
  • <div><p>If you have a while loop with a command, like <pre><code> while True: sleep 1 </code></pre> <p>you can't interrupt it. Ctrl-c just restarts the loop. </p><p>该提问来源于开源项目:...
  • syntax error: unterminated while loop Here is a case where it happens: <pre><code> actor Main new create(env: Env) => var iter: U64 = 0 while iter < 5 do env.out.print(iter.string())...
  • How to design while loop

    2020-06-08 10:00:08
    *Definition:How to design a while loop *Author: *Date: */ #include #include// Put this lib you can use sentence “cin>> string” using namespace std; int main() { /************* # Fist step: ...

    /*
    *Definition:How to design a while loop
    *Author:
    *Date:
    */
    #include
    #include// Put this lib you can use sentence “cin>> string”

    using namespace std;

    int main()
    {
    /*************
    # Fist step: design the context in the context.
    (string password;

    cout << "Please input the password:" << endl;
    cin>> password;
    cout << "Your password is :"<< password;)
    # Second: put the context into the loop
    (sting password;
    int i=1;
    while(i<=3)
    {
    
    i++;)
    put context in while
    }
    
    */
    string password;
    int i = 0;
    while (i <=3)
    {
    	cout << "Please input the password:" << endl;
    	cin >> password;
    	cout << "Your password is :" << password<<endl;
    	i++;
    	// judge the whether the password is correct.
    	if (password != "123abc")
    	{
    		cout << "The password is wrong!" << endl;
    		if (i == 3){
    			cout << "Input the wrong password 3 times, system is forced to exit!" << endl;
    			exit(0);// 0 is wrong error code, you can design it in advance ,then you will know where is wrong,
    			
    		}
    	}
    }
    
    system("PAUSE");
    return 0;
    

    }

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  • <div><p>I have a shape created randomly that gets the triangulation stuck in a while loop in this create_trepazoids, and keeps printing "add_segment: Error" (other shapes work fine) <p>I ...
  • <div><p>The while loop that iterates over a single pseudo style is causing webkit browsers to crash as discussed in issues #55 and #48. It seems like this while loop's original purpose was to ...
  • Bash While Loop Example

    2012-10-15 14:15:54
    How do I use bash while loop to repeat certain task under Linux / UNIX operating system? How do I set infinite loops using while statement? The bash while loop is a control flow statement that al
  • runtime never exit from while loop. <p>After this loop exec is done, and previous duplicated fd are close on exec. <p>Signed-off-by: Jose Carlos Venegas Munoz </p><p>该提问来源于开源项目:intel/...
  • But the keyboard hook is blocking (relies on a while loop to stay alive) <p>Can someone point me in the right direction for implementing this functionality inside an AsyncWorker or something similar?...
  • <div><p>This branch includes the following changes from the master branch: ...- While Loop. A block for creating a while loop. </p><p>该提问来源于开源项目:BlocklyDuino/BlocklyDuino</p></div>
  • How to design while loop 2

    2020-06-08 10:01:25
    *Definition:Using while loop to solove the the question: Taobao double eleven make the 80 billion turnover in 2015, an average annual increase of 15% in the next few year, which year the turnover is ...
  • <div><p>It looks like <code>while</code> loop scope is highlighted wrong with the built-in Lua syntax. The second <code>end</code> keyword is excessive and is not part of the while loop. And there is ...
  • <div><p>In <code>test_autoguide.py::test_logistic_regression[AutoIAFNormal], almost 25 seconds out of 32 odd seconds are taken to just compile the while loop. We also cannot use <code>fori_collect...
  • Both programs utilizes a while loop based on running time and there are no operations performed in the while loop. To fix the program, a basic.showIcon command is inserted before and after the while ...
  • 1.a=(b–,c++,b+c) in the end : a=b+c; 2.while loop while(condition) { ++or–; then quit; }
  • 6. Step-over in the while loop, then slowly step-over through the while loop <p>Actual: Debugging hangs and will not allow you to continue or step-over. When pushing stop and error pops up saying ...
  • m doing this for several emails at once using while loop. <p>OS: Debian GNU/Linux 10 (buster) (in AWS) PHP: PHP 7.3.19 PhpMimeMailParser: Latest atm 6.0.0 <p>The first email in the loop decodes ...
  • [初学笔记] while loop

    2017-09-01 16:07:52
    while loop is a conditional loop 即系,满足条件时,会一直循环重复执行,,,直到 不满足 条件时才能结束循环 在MATLAB 中 while循环的语法是: while end while 循环反复执行程序语句只要表达式为 ...
  • sqlserver WHILE Loop example

    2011-10-20 11:20:00
    sqlserver WHILE Loop example I am not sure about DO-WHILE IN MS SQL Server 2008 but you can change your WHILE loop logic, so as to USE like DO-WHILE loop. 1) Example of WHI...

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