‘如果不是’来避免零除

def safe_divide(numerator, denominator):
    if denominator != 0:
        return numerator / denominator
    else:
        return "Error: Division by zero is not allowed."

result = safe_divide(10, 0)
print(result)  # 输出: Error: Division by zero is not allowed.

function safeDivide(numerator, denominator) {
    if (denominator !== 0) {
        return numerator / denominator;
    } else {
        return "Error: Division by zero is not allowed.";
    }
}

let result = safeDivide(10, 0);
console.log(result);  // 输出: Error: Division by zero is not allowed.

public class SafeDivision {
    public static String safeDivide(int numerator, int denominator) {
        if (denominator != 0) {
            return String.valueOf(numerator / denominator);
        } else {
            return "Error: Division by zero is not allowed.";
        }
    }

    public static void main(String[] args) {
        String result = safeDivide(10, 0);
        System.out.println(result);  // 输出: Error: Division by zero is not allowed.
    }
}