基础的Python作业，主要就是用while和if结合三方库来画图。

You will use Turtle graphics to draw a picture containing multiple shapes of multiple colors and arranged to be visually pleasing.

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Introduction

You will use Turtle graphics to draw a picture containing multiple shapes of multiple colors and arranged to be visually pleasing.

现在提到了代写服务，肯定很多人都不会觉得陌生，就算是国内也是有着专业代写作业的服务行业的，能够为有需求的学生提供很多的帮助，不过其实代写机构在国外会更获得学生的支持，这是因为国外的学校对于平时的作业要求比较严格，为了获得更高的分数顺利毕业，不少留学生就会让代写机构帮忙完成作业，比较常见的作业代写类型，就是计算机专业了，因为对于留学生来说这个技术对于Machine Learning或者AI的代码编程要求更高，所以找代写机构完成作业会简单轻松很多，那么代写机构的水平，要怎么选择才会比较高？

1、代写机构正规专业

不论是在什么情况下，选择正规合法经营的机构肯定是首要的操作，这也是为了避免自己在找机构的时候，出现上当受骗的现象，造成自己的经济出现损失，带来的影响还是非常大的，所以需要注意很多细节才可以，所以在这样的情况下，代写机构的选择，也要选择在经营方面属于正规合法的类型，这样才可以保证服务进行的时候，不会出现各种问题，也可以减少损失的出现，而且正规合法也是代写机构的合格基础。

2、代写机构编程能力

作业的难度相信很多人都很熟悉，特别是对于AI深度学习或者是人工神经网络这种算法来说，因为要对SVM、Design Tree、线性回归以及编程有很高的要求，可以说作业的完成要求非常高，因此才会带动代写机构的发展，找专业的代写机构，一般都是会有专业的人员帮忙进行作业的完成，因为这类型的作业对专业要求比较高，因此代写机构也要具备专业能力才可以，否则很容易导致作业的完成出现问题，出现低分的评价。

3、代写机构收费情况

现在有非常多的留学生，都很在意作业的完成度，为了保证作业可以顺利的被完成，要进行的相关操作可是非常多的，代写机构也是因为如此才会延伸出来的，在现在发展也很迅速，现在选择代写机构的时候，一定要重视收费情况的合理性，因为代写作业还是比较费精力的，而且对于专业能力要求也高，所以价格方面一般会收取几千元至万元左右的价格，但是比较简单的也只需要几百元价格。

4、代写机构完成速度

大部分人都很在意代写机构的专业能力，也会很关心要具备什么能力，才可以展现出稳定的代写能力，其实专业的代写机构，对于作业完成度、作业完成时间、作业专业性等方面，都是要有一定的能力的，特别是在完成的时间上，一定要做到可以根据客户规定的时间内完成的操作，才可以作为合格专业的代写机构存在，大众在选择的时候，也可以重视完成时间这一点来。

现在找专业的CS代写机构帮忙完成作业的代写，完全不是奇怪的事情了，而且专业性越强的作业，需要代写机构帮忙的几率就会越高，代写就发展很好，需求量还是非常高的，这也可以很好的说明了，这个专业的难度以及专业性要求，才可以增加代写机构的存在。

Although you are free to decide the precise shape(s) and layout for your picture, some aspect of the picture must depend on a numeric value input by the user.

For example, the input might determine the size of the shapes, the number of shapes, or their spacing.

Background

Originally written as a part of the logo programming language, Turtle graphics is one of the oldest graphics programs. It is a 2D graphics package that uses a Cartesian coordinate system and a “turtle,” which you can imagine has a pen attached to its body. The turtle can move around the plane, drawing as it goes. Python has a module that implements the behavior of the original turtle graphics program and this module is simply called “turtle” (see Appendix B of the text and the comments in the sample file turtleSample.py).

Project Description / Specification

Your program must:

Output a brief descriptive message of what the program does.
Repeatedly prompt for the input until the user supplies values of the correct form (discard incorrect inputs). Your prompt should say what form of input is needed.
Draw a picture containing multiple shapes of multiple colors, where the input value(s) is (are) used to determine some aspect of the shapes and/or their layout.
Adhere to 1-6 of the Coding Standard

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In programming your solution, you must:

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Use at least two repetition (while or for) statements.Use at least one selection (if) statement.

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We show example output produced by two different programs that meet these requirements at the end of this write-up. You may be creative and create your own program, or you may choose to mimic one of these two examples. The second example shows error checking being tested.

Creating Colors

There are many ways to create a color but a common one used in computer graphics is the process of additive color. Combining different amounts of red, green and blue can create most (but not all) colors. In turtle, you can specify a color by giving three floating-point values, each in the range from 0.0 to 1.0, indicating the amount (fraction or percent) of each color. For instance, (1.0, 0.0, 0.0) is red, (0.0, 1.0, 0.0) is green, and (0.5, 0.5, 0.0) is brown.
You can find the codes for many colors on a color chart.
A convenient way to generate different colors is to repeatedly call the random function in the random module to obtain values for the color amounts. First, import the random module: import random
Then, each call to random.random() returns a pseudo random (floating-point) number in the range 0.0 to 1.0. A sample program using this method to create a color and draw a figure is provided in the project directory: turtleSample.py

Using turtle graphics

In order to use turtle graphics in Python you must first import the turtle module. You can then use the help function in the shell to find out what methods this module includes and what they do. Just type import turtle in the Python Shell window, hit enter, and then type help(turtle) and scroll up through the list and information. For more details Google “Python 3 turtle.” A sample Python program, turtleSample.py, is provided in the project directory. The comments in this file describe methods that you might want to use for this project. When running your program in Spyder, you may need to look under other windows to find the turtle drawing window.