MSI安装程序选项-卸载应用程序

Question

如果我运行下面的代码，我很确定我应该获得该应用程序的产品名称和GUID（例如App Path | {xxx}）。但是我只是得到路径而没有显示GUID。有人可以帮我吗？

import time

class_stats = {
    "Warrior": (50, 7, 95),
    "Hunter" : (40, 10, 85),
    "Wizard" : (35, 12, 80),
}

class ClassBase:
    def __init__(self, class_name, health, damage, hit_chance):
        self.class_name = class_name
        self.health = health
        self.damage = damage
        self.hit_chance = hit_chance

def get_choice(question, choices):
    print(question)
    letter_choice_dict = {}
    for i, choice in enumerate(choices):
        letter_choice_dict[chr(ord("A") + i)] = choice
    for letter, choice in letter_choice_dict.items():
        print(letter + ") " + choice)
    user_choice = input().upper()

    try:
        return letter_choice_dict[user_choice]
    except KeyError:
        raise ValueError("Invalid choice " + user_choice)

def main():
    print("Welcome to Blades of Goblonia!")

    user_name = input("What is your name?")
    print("Hello, " + user_name + "!")
    chosen_class = get_choice("What class would you like to be?", class_stats.keys())

    stats = class_stats[chosen_class]
    user = ClassBase(chosen_class, *stats)
    print("You are a " + user.class_name + "!")

    enemy = ClassBase("Goblin", 30, 10, 60)
    print("Out of nowhere, a", enemy.class_name, "appears!")

    time.sleep(1)

    action_chosen = get_choice("Would you like to", ["Hit", "Run", "Heal"])

    # do something with user and/or enemy depending on action_chosen

if __name__ == "__main__":
    main()

这是我运行代码的图像

Answer 1

我相信UninstallString值是通过Add/Remove Programs卸载应用程序时执行的值。如控制台输出所示，它是可执行文件的路径。

您检索产品ID的方式...

string prdctId = uninstlString.Substring(12);

...因此不正确，因为您正在采用部分路径。您需要传递给MsiExec.exe /x的是产品代码，它是注册表项名称本身，即...

string prdctId = keyName;

如果您要从Command Prompt调用该命令行，我很确定大括号将需要在产品代码两边加上引号。我不确定直接调用可执行文件时是否需要这样做，但这不会造成伤害...

uninstallProcess.StartInfo.Arguments = " /x \"" + prdctId + "\" /quiet /norestart";