中文字符截取函数的

///str_value 瀛楃

///str_len 瑕佹埅鍙栫殑瀛楃闀垮害

public string leftx(string str_value,int str_len)

{

int p_num = 0;

int i;

string New_Str_value = \"\";

if (str_value==\"\")

{

New_Str_value = \"\";

}

else

{

int Len_Num = str_ngth;

//if (Len_Num str_len)

//{

//str_len = Len_Num;

//}

for (i = 0;i=Len_Num - 1; i++)

{

法院查明：张伟兰、赵俊等人多年在矿山做工 //str_bstring(i,1);

if (i Len_Num) break;

char c = Char(str_bstring(i,1));

if (((int)c 255) || ((int)c0))

{

p_num = p_num + 2;

}

else

{

p_num = p_num + 1;

}

if (p_num = str_len)

{

New_Str_value = str_bstring(0,i+1);

break;

}

else

{

New_Str_value = str_value;

}

}

}

return New_Str_value;

}

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