判断两个字符相似度-创新互联
publ
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成都创新互联公司的ssl证书销售渠道，可以享受市场价格4-6折优惠！如果有意向欢迎电话联系或者加微信：18982081108（备注：SSL证书合作）期待与您的合作！ic static double SimilarityNoContains(string a, string b)
{
string a1 = "";
string b1 = "";
if (a==b)
{
return 1;
}
//消除重复
for (int i = 0; i < a.Length; i++)
{
string emtpy = a.Substring(i, 1).ToString();
if (a1.Length == 0)
{
a1 = emtpy;
}
if (a1.IndexOf(emtpy, 0) < 0)
{
a1 += emtpy;
}
}
//消除重复
for (int i = 0; i < b.Length; i++)
{
string emtpy = b.Substring(i, 1).ToString();
if (b1.Length == 0)
{
b1 = emtpy;
}
if (b1.IndexOf(emtpy, 0) < 0)
{
b1 += emtpy;
}
}
//计算相似度
if (a1.Length >= b1.Length)
{
int q = 0;
for (int i = 0; i < b1.Length; i++)
{
for (int j = 0; j < a1.Length; j++)
{
if (b1.Substring(i, 1).ToString() == a1.Substring(j, 1).ToString())
{
q += 1;
}
}
}
System.Globalization.NumberFormatInfo provider = new System.Globalization.NumberFormatInfo();
provider.PercentDecimalDigits = 2;//小数点保留几位数.
provider.PercentPositivePattern = 1;//百分号出现在何处.
double result = (double)q / (a1.Length + b1.Length - q);//一定要用double类型.
return result;
}
else
{
int q = 0;
for (int i = 0; i < a1.Length; i++)
{
for (int j = 0; j < b1.Length; j++)
{
if (a1.Substring(i, 1).ToString() == b1.Substring(j, 1).ToString())
{
q += 1;
}
}
}
System.Globalization.NumberFormatInfo provider = new System.Globalization.NumberFormatInfo();
provider.PercentDecimalDigits = 2;//小数点保留几位数.
provider.PercentPositivePattern = 1;//百分号出现在何处.
double result = (double)q / (a1.Length + b1.Length - q);//一定要用double类型.
return result;
}
}
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