在模块期间 - typeError:并非在字符串格式化期间转换所有参数

时间:2015-09-28 06:49:22

标签: python

我试图计算两个随机数的最大公共分频器,这是我的源代码。引用表明: TypeError: not all arguments converted during string formatting但实际上,我不打算进行任何字符串格式化。我该如何纠正?

def gcd(Num_1, Num_2):
    c = (Num_1 % Num_2);
    Num_1 = Num_2;
    Num_2 = c;
    if c != 0:
        return gcd(Num_1, Num_2)
    else:
        return Num_1

Num_1 = raw_input("a\n>");
Num_2 = raw_input("b\n>");

gcd(Num_1, Num_2);

2 个答案:

答案 0 :(得分:1)

使用raw_input()获取输入时,会返回字符串,因此Num_1Num_2是字符串,而不是int,因此当您在其上使用%时,Python假设它是字符串格式化运算符,而不是模块运算符,并且由于左侧没有格式,因此会出现错误。示例 -

>>> '1' % '2'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: not all arguments converted during string formatting

您应该按照预期int将输入转换为int。此外,还有一种更简单的方法可以在Python中交换元素(你试图用临时变量做什么) -

def gcd(Num_1, Num_2):
    Num_1, Num_2 = Num_2, (Num_1 % Num_2)
    if c != 0:
        return gcd(Num_1, Num_2)
    else:
        return Num_1

Num_1 = int(raw_input("a\n>"))
Num_2 = int(raw_input("b\n>"))

gcd(Num_1, Num_2)

答案 1 :(得分:0)

@model IdentitySample.Models.RegisterViewModel @using (Html.BeginForm("Register", "Account", FormMethod.Post, new { @class = "form-horizontal", role = "form" })) { @Html.AntiForgeryToken() <h4>Create a new account.</h4> <hr /> @Html.ValidationSummary("", new { @class = "text-danger" }) <div class="form-group"> @Html.LabelFor(m => m.Email, new { @class = "col-md-2 control-label" }) <div class="col-md-10"> @Html.TextBoxFor(m => m.Email, new { @class = "form-control" }) </div> </div> <div class="form-group"> @Html.LabelFor(m => m.Password, new { @class = "col-md-2 control-label" }) <div class="col-md-10"> @Html.PasswordFor(m => m.Password, new { @class = "form-control" }) </div> </div> <div class="form-group"> @Html.LabelFor(m => m.ConfirmPassword, new { @class = "col-md-2 control-label" }) <div class="col-md-10"> @Html.PasswordFor(m => m.ConfirmPassword, new { @class = "form-control" }) </div> </div> <div class="form-group"> <div class="col-md-offset-2 col-md-10"> <input type="submit" class="btn btn-default" value="Register" /> </div> </div> } 返回一个字符串,字符串上的%表示字符串格式。

请尝试使用raw_inputhttps://docs.python.org/2.7/library/functions.html?highlight=input#input