用matlab写代码完成以下要求：Ask user to enter positive numbers 10 times, display all the positive numbers that were entered, and an error message if the user entered an incorrect value. Repeat asking until the user finally enters all 10 positive numbers.

我可以回答这个问题。以下是 MATLAB 代码：

% 初始化一个空数组来存储用户输入的正数
positive_numbers = [];

% 循环10次，每次要求用户输入一个正数
for i = 1:10
    % 提示用户输入
    prompt = sprintf('请输入第 %d 个正数：', i);
    % 获取用户输入
    user_input = input(prompt);
    
    % 判断用户输入是否为正数
    if user_input > 0
        % 如果是正数，则将其添加到数组中
        positive_numbers(end+1) = user_input;
    else
        % 如果不是正数，则显示错误消息并重新循环
        disp('错误：请输入一个正数。');
        i = i - 1;
    end
end

% 显示用户输入的所有正数
disp('您输入的正数为：');
disp(positive_numbers);

用户将被要求输入10个正数，如果输入的不是正数，则会显示错误消息并重新要求输入。最后，程序将显示用户输入的所有正数。

相关问题

7-1 Please login 分数 10 作者 马杨珲 单位 浙江科技学院 Design a login program to allow users to enter password. （1）If the password entered is zust, print Success. This indicates that the login is complete （2）Otherwise print Password error, and the user can enter again. The user is allowed to enter at most 3 times. After three failures, print Login failed. Input Specification: Enter the password in one line. If there is an error, you need to re-enter it. At most 3 times. Output Specification: Print results according to inputshell 编程

Sure, here's a possible solution in shell:

#!/bin/bash

password="zust"
tries=0

while [ $tries -lt 3 ]
do
    read -p "Please enter password: " input_password
    if [ "$input_password" == "$password" ]
    then
        echo "Success"
        exit 0
    else
        echo "Password error"
        tries=$((tries+1))
    fi
done

echo "Login failed"
exit 1

Explanation:

- We set the correct password to "zust" and initialize the number of tries to 0.
- We use a while loop to allow the user to enter the password at most 3 times.
- Inside the loop, we use the `read` command to read the input password from the user.
- We compare the input password with the correct password using the `==` operator in an `if` statement.
- If the passwords match, we print "Success" and exit the program with status code 0 (which means success).
- If the passwords don't match, we print "Password error" and increment the number of tries.
- At the end of the loop, if the number of tries is 3 or more, we print "Login failed" and exit the program with status code 1 (which means failure).

The first homework is to create a new project called "MyOwnCommandLineArguments" as following: Receive the ages of the all your family members (between 3 to 6 members) as command line arguments in the format as following (name then age) Monica 12 Daniel 34 Shelley 23 Compute and display the average of the ages that were entered.

Sure, I can help you with that!

To start, create a new project in your preferred programming language. Then, you'll need to access the command line arguments passed to your program.

In Python, you can use sys.argv to access the command line arguments. Here's some example code:

import sys

# Get command line arguments
args = sys.argv[1:]

# Parse arguments into dictionary
family = {}
for i in range(0, len(args), 2):
    family[args[i]] = int(args[i+1])

# Calculate average age
total_age = sum(family.values())
average_age = total_age / len(family)

# Print results
print("Family ages:", family)
print("Average age:", average_age)

This code takes the command line arguments, which are assumed to be in the format "name age", and parses them into a dictionary. Then, it calculates the total age and average age of the family members, and prints out the results.

To run this code, you would call it from the command line like this:

python my_program.py Monica 12 Daniel 34 Shelley 23

This would output:

Family ages: {'Monica': 12, 'Daniel': 34, 'Shelley': 23}
Average age: 23.0

I hope this helps you get started on your homework! Let me know if you have any questions.