如何基于FTH、FTA变量编写三分支if语句并将结果存入vector？

Got it, let's break down how to implement this exactly as you asked. Here's a straightforward approach using C++ (since you mentioned vectors, I'm assuming that's the language you're working with):

Step 1: Set up your variables and vector #

First, declare your two integer variables FTH and FTA—you can initialize them with specific values or take input from the user, depending on your use case. Then create a std::vector<std::string> to hold the final result; this makes sense because we're storing string-based outcomes like "Home", "Away", or "Draw".

Step 2: Implement the three-branch if statement #

We'll use a standard if-else if-else chain to cover all three conditions you specified:

• If FTH is greater than FTA, we add "Home" to the vector
• If FTH is less than FTA, we add "Away"
• If they're equal, we add "Draw"

Full Code Example #

#include <vector>
#include <string>
#include <iostream>

// You can place this logic in a function or main() based on your needs
int main() {
    // Declare and initialize your integer variables
    int FTH = 3;
    int FTA = 1;
    
    // Initialize the vector to store the match outcome
    std::vector<std::string> matchResult;
    
    // Three-way conditional check
    if (FTH > FTA) {
        matchResult.push_back("Home");
    } else if (FTH < FTA) {
        matchResult.push_back("Away");
    } else {
        matchResult.push_back("Draw");
    }
    
    // Optional: Verify the result (you can skip this if not needed)
    for (const auto& result : matchResult) {
        std::cout << "Match outcome: " << result << std::endl;
    }
    
    return 0;
}

Quick Notes #

• If you need to process multiple sets of FTH and FTA values, just wrap this logic in a loop—each iteration will calculate the outcome and push it to the vector, building up a list of results.
• Don't forget to include the required headers (<vector> and <string>) at the top of your file to avoid compilation errors.
• You can easily adjust the initial values of FTH and FTA or replace them with input (like std::cin >> FTH >> FTA) if you need dynamic values.

内容的提问来源于stack exchange，提问作者Conor