调试JavaScript条件逻辑：修复剪刀石头布游戏中的if/else语句错误

function getPlayerChoice() {
    prompt("rock paper or scissors?").toLowerCase();
}

function playRound (playerSelection,computerSelection) {
    computerSelection = getComputerChoice();
    playerSelection = getPlayerChoice(); // 问题出在这里

    if (computerSelection === playerSelection) {
        console.log  ("Tie");
    }
    // ... 其他 else if 语句 ...
    else  (playerSelection === "scissors" && computerSelection === "paper") ;{ // 另一个问题出在这里
        console.log ("You win! Scissors beats Paper");
    }
}

function getPlayerChoice() {
    // prompt的返回值在这里丢失了，没有被返回
    prompt("rock paper or scissors?").toLowerCase(); 
}

function getPlayerChoice() {
    return prompt("rock paper or scissors?").toLowerCase();
}

else  (playerSelection === "scissors" && computerSelection === "paper") ;{
    console.log ("You win! Scissors beats Paper");
}

// 如果这是最后一个明确的胜利条件，应该使用 else if
else if (playerSelection === "scissors" && computerSelection === "paper") {
    console.log ("You win! Scissors beats Paper");
}
// 如果它是一个通用的“其他情况”捕获，则应如下
else { // 注意：这里不应有条件，也不应有分号
    console.log ("This is the catch-all case, e.g., 'You lose' or 'Invalid input'");
}

function getComputerChoice() {
    const randomNumber = Math.floor(Math.random() * 3);
    switch (randomNumber) {
        case 0:
            return "rock";
        case 1:
            return "paper";
        case 2:
            return "scissors";
    } // 注意：switch语句后不需要分号
}

function getPlayerChoice() {
    // 确保返回玩家的选择
    return prompt("rock paper or scissors?").toLowerCase();
}

function playRound() { // 函数可以直接获取选择，无需参数传递
    const playerSelection = getPlayerChoice();
    const computerSelection = getComputerChoice();

    // 输入验证（可选，但推荐）
    if (!['rock', 'paper', 'scissors'].includes(playerSelection)) {
        console.log("无效的选择，请选择 rock, paper, or scissors。");
        return; // 提前退出
    }

    console.log(`玩家选择: ${playerSelection}, 电脑选择: ${computerSelection}`);

    if (computerSelection === playerSelection) {
        console.log("平局！");
    }
    // 电脑胜利条件
    else if (
        (computerSelection === "rock" && playerSelection === "scissors") ||
        (computerSelection === "paper" && playerSelection === "rock") ||
        (computerSelection === "scissors" && playerSelection === "paper")
    ) {
        console.log(`你输了！${computerSelection} 打败 ${playerSelection}`);
    }
    // 玩家胜利条件 (所有其他情况)
    else { 
        console.log(`你赢了！${playerSelection} 打败 ${computerSelection}`);
    }
}

// 调用游戏轮次
playRound();