string转换成float的时候出现异常
wince平台在俄文系统上面用C#开发应用程序
将string转换成float的时候出现FormatException，有人遇到过吗
string a = "3.142";
float x = Convert.ToSingle(a);
[解决办法]
C#没用过。。
可不可以用C标准？
char * str = "3.142";
double x = strtod(str,NULL);
[解决办法]
可不可以用C标准？
char * str = "3.142";
double x = strtod(str,NULL);
[解决办法]
帮顶了.
[解决办法]
Exception Condition
FormatException value is not a number in a valid format.
[解决办法]
FormatException
value 不是有效格式的數字。
string[] values= { "-1,035.77219", "1AFF", "1e-35",
"1,635,592,999,999,999,999,999,999", "-17.455",
"190.34001", "1.29e325"};
float result;
foreach (string value in values)
{
try {
result = Convert.ToSingle(value);
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
value.GetType().Name, value,
result.GetType().Name, result);
}
catch (FormatException) {
Console.WriteLine("Unable to convert '{0}' to a Single.", value);
}
catch (OverflowException) {
Console.WriteLine("'{0}' is outside the range of a Single.", value);
}
}
// The example displays the following output:
// Converted the String value '-1,035.77219' to the Single value -1035.772.
// Unable to convert '1AFF' to a Single.
// Converted the String value '1e-35' to the Single value 1E-35.
// Converted the String value '1,635,592,999,999,999,999,999,999' to the Single value 1.635593E+24.
// Converted the String value '-17.455' to the Single value -17.455.
// Converted the String value '190.34001' to the Single value 190.34.
// '1.29e325' is outside the range of a Single.
