c# - string.Format() 给出 "Input string is not in correct format"

Question

我在这里做错了什么？

string tmp = @"
    if (UseImageFiles) {
        vCalHeader += ""<td><img onmousedown='' src= '{0}cal_fastreverse.gif' width='13px' height='9' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>\n""; //Year scroller (decrease 1 year)
        calHeight += 22;
    }";

string x = "xter";
tmp = string.Format(tmp, x);

我明白了

Input string was not in correct format

尝试更改 {0} 时。我在 C# 和 WinForms 中执行此操作。

Format Exception was unhandled
Input string was not in correct format

我得到的疑难解答提示:

Make sure your method arguments are in right format. When converting a string to datetime, parse the string to take out the date before putting each variable into the DateTime object.

Answer 1

string.Format() 将每个“{”或“}”视为占位符的一部分(例如您已经使用的“{0}”)。您需要通过将每个字面值加倍来转义它。

所以在你的情况下:

 string tmp = @"
    if (UseImageFiles) {{
        ...
    }}";