C# 读取 double 类型的用户输入
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/13813166/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
read user input of double type
提问by trueCamelType
I have found this answered in other places using loops, but I wasn't sure if there is actually a function that I'm not finding that makes this easier, or if this is a possible (in my opinion) negative side to C#.
我已经在其他地方使用循环找到了这个答案，但我不确定是否真的有一个我没有找到的函数使这更容易，或者这是否可能（在我看来）对 C# 不利。
I'm trying to read in a double from user input like this:
我正在尝试从这样的用户输入中读取双精度：
Console.WriteLine("Please input your total salary: ") // i input 100
double totalSalary = Console.Read(); //reads in the 1, changes to 49.
I've found a couple other posts on this, and they all have different answers, and the questions asked aren't exactly the same either. If i just want the user input read in, what is the best way to do that?
我找到了一些关于此的其他帖子，它们都有不同的答案，所提出的问题也不完全相同。如果我只想读入用户输入，那么最好的方法是什么？
采纳答案by Simon Whitehead
You'll have to check the entire thing on it's way in.. as Console.Read()returns an integer.
你必须在它进入的路上检查整个事情......因为Console.Read()返回一个整数。
double totalSalary;
if (!double.TryParse(Console.ReadLine(), out totalSalary)) {
// .. error with input
}
// .. totalSalary is okay here.
回答by John
string input = Console.ReadLine();
double d;
if (!Double.TryParse(input, out d))
Console.WriteLine("Wrong input");
double r = d * Math.Pi;
Console.WriteLine(r);
回答by Versive
Simplest answer to your question:
最简单的回答你的问题：
double d = Double.Parse(Console.Readline());
回答by Dylan
Try this:
尝试这个：
double Salary = Convert.ToDouble(Console.ReadLine());
