C#如何判断一个字符串中中文和字母或数字的个数(转载)

int inum=0;

int ichar = 0;

int ichi = 0;

string strTemp;

for (int i = 0; i < this.textBox1.Text.Length; i++)

{

strTemp=this.textBox1.Text.Substring(i,1);

if ("0123456789０１２３４５６７８９".IndexOf(strTemp) > -1)

{

inum++;

}

else if ("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ".IndexOf(strTemp) > -1)

{

ichar++;

}

else

{

ichi++;

}

}

this.textBox2.Text = "数字：" + inum.ToString();

this.textBox3.Text = "字母：" + ichar.ToString();

this.textBox4.Text = "汉字：" + ichi.ToString();