window命令行打开计算器

在 Windows 操作系统中，可以通过在命令行中输入 `calc` 命令来打开计算器。方法如下：

1. 打开命令行界面，可以通过按下 `Win + R` 组合键，然后输入 `cmd`，再按下回车键来打开命令行界面。

2. 在命令行中输入 `calc` 命令，然后按下回车键即可打开计算器。

另外，也可以在 Windows 操作系统中通过搜索框来打开计算器，方法是在搜索框中输入 `计算器`，然后点击打开即可。

相关问题

用python写一个计算器应用程序

好的，以下是一个简单的 Python 计算器应用程序，使用了 `tkinter` 模块来创建图形用户界面：

import tkinter as tk

# 定义加法函数
def add():
    try:
        num1 = float(entry_num1.get())
        num2 = float(entry_num2.get())
        result = num1 + num2
        label_result.config(text="结果：" + str(result))
    except ValueError:
        label_result.config(text="请输入数字")

# 定义减法函数
def subtract():
    try:
        num1 = float(entry_num1.get())
        num2 = float(entry_num2.get())
        result = num1 - num2
        label_result.config(text="结果：" + str(result))
    except ValueError:
        label_result.config(text="请输入数字")

# 定义乘法函数
def multiply():
    try:
        num1 = float(entry_num1.get())
        num2 = float(entry_num2.get())
        result = num1 * num2
        label_result.config(text="结果：" + str(result))
    except ValueError:
        label_result.config(text="请输入数字")

# 定义除法函数
def divide():
    try:
        num1 = float(entry_num1.get())
        num2 = float(entry_num2.get())
        result = num1 / num2
        label_result.config(text="结果：" + str(result))
    except ValueError:
        label_result.config(text="请输入数字")
    except ZeroDivisionError:
        label_result.config(text="除数不能为0")

# 创建窗口
window = tk.Tk()
window.title("计算器")

# 创建标签和输入框
label_num1 = tk.Label(window, text="数字1：")
label_num1.grid(row=0, column=0, padx=5, pady=5)

entry_num1 = tk.Entry(window)
entry_num1.grid(row=0, column=1, padx=5, pady=5)

label_num2 = tk.Label(window, text="数字2：")
label_num2.grid(row=1, column=0, padx=5, pady=5)

entry_num2 = tk.Entry(window)
entry_num2.grid(row=1, column=1, padx=5, pady=5)

# 创建按钮
button_add = tk.Button(window, text="加法", command=add)
button_add.grid(row=2, column=0, padx=5, pady=5)

button_subtract = tk.Button(window, text="减法", command=subtract)
button_subtract.grid(row=2, column=1, padx=5, pady=5)

button_multiply = tk.Button(window, text="乘法", command=multiply)
button_multiply.grid(row=3, column=0, padx=5, pady=5)

button_divide = tk.Button(window, text="除法", command=divide)
button_divide.grid(row=3, column=1, padx=5, pady=5)

# 创建结果标签
label_result = tk.Label(window, text="结果：")
label_result.grid(row=4, column=0, columnspan=2, padx=5, pady=5)

# 运行窗口
window.mainloop()

你可以将上述代码保存为 `calculator_app.py` 文件，然后在命令行中运行它，就可以打开一个计算器应用程序窗口。

用python写一个计算器包含数字按钮和符号按钮

好的，以下是一个使用 `tkinter` 模块实现的计算器，包含数字按钮和符号按钮：

import tkinter as tk

# 定义变量
num1 = ""
num2 = ""
operator = ""

# 定义数字按钮点击事件处理函数
def click_num(num):
    global num1, num2, operator
    if operator == "":
        num1 += num
        label_result.config(text=num1)
    else:
        num2 += num
        label_result.config(text=num2)

# 定义符号按钮点击事件处理函数
def click_operator(op):
    global num1, num2, operator
    if num1 != "" and num2 != "":
        if operator == "+":
            result = float(num1) + float(num2)
        elif operator == "-":
            result = float(num1) - float(num2)
        elif operator == "*":
            result = float(num1) * float(num2)
        elif operator == "/":
            result = float(num1) / float(num2)
        label_result.config(text=str(result))
        num1 = str(result)
        num2 = ""
        operator = op
    elif num1 != "":
        operator = op

# 定义清除按钮点击事件处理函数
def click_clear():
    global num1, num2, operator
    num1 = ""
    num2 = ""
    operator = ""
    label_result.config(text="")

# 创建窗口
window = tk.Tk()
window.title("计算器")

# 创建结果标签
label_result = tk.Label(window, text="")
label_result.grid(row=0, column=0, columnspan=4, padx=5, pady=5)

# 创建数字按钮
button_1 = tk.Button(window, text="1", width=5, height=2, command=lambda: click_num("1"))
button_1.grid(row=1, column=0, padx=5, pady=5)

button_2 = tk.Button(window, text="2", width=5, height=2, command=lambda: click_num("2"))
button_2.grid(row=1, column=1, padx=5, pady=5)

button_3 = tk.Button(window, text="3", width=5, height=2, command=lambda: click_num("3"))
button_3.grid(row=1, column=2, padx=5, pady=5)

button_4 = tk.Button(window, text="4", width=5, height=2, command=lambda: click_num("4"))
button_4.grid(row=2, column=0, padx=5, pady=5)

button_5 = tk.Button(window, text="5", width=5, height=2, command=lambda: click_num("5"))
button_5.grid(row=2, column=1, padx=5, pady=5)

button_6 = tk.Button(window, text="6", width=5, height=2, command=lambda: click_num("6"))
button_6.grid(row=2, column=2, padx=5, pady=5)

button_7 = tk.Button(window, text="7", width=5, height=2, command=lambda: click_num("7"))
button_7.grid(row=3, column=0, padx=5, pady=5)

button_8 = tk.Button(window, text="8", width=5, height=2, command=lambda: click_num("8"))
button_8.grid(row=3, column=1, padx=5, pady=5)

button_9 = tk.Button(window, text="9", width=5, height=2, command=lambda: click_num("9"))
button_9.grid(row=3, column=2, padx=5, pady=5)

button_0 = tk.Button(window, text="0", width=5, height=2, command=lambda: click_num("0"))
button_0.grid(row=4, column=1, padx=5, pady=5)

# 创建符号按钮
button_add = tk.Button(window, text="+", width=5, height=2, command=lambda: click_operator("+"))
button_add.grid(row=1, column=3, padx=5, pady=5)

button_subtract = tk.Button(window, text="-", width=5, height=2, command=lambda: click_operator("-"))
button_subtract.grid(row=2, column=3, padx=5, pady=5)

button_multiply = tk.Button(window, text="*", width=5, height=2, command=lambda: click_operator("*"))
button_multiply.grid(row=3, column=3, padx=5, pady=5)

button_divide = tk.Button(window, text="/", width=5, height=2, command=lambda: click_operator("/"))
button_divide.grid(row=4, column=3, padx=5, pady=5)

button_clear = tk.Button(window, text="清除", width=5, height=2, command=click_clear)
button_clear.grid(row=4, column=2, padx=5, pady=5)

# 运行窗口
window.mainloop()

你可以将上述代码保存为 `calculator_with_buttons.py` 文件，然后在命令行中运行它，就可以打开一个带有数字按钮和符号按钮的计算器。