如何将代码中的 string[] 更改为 stringbuilder？

debugcn 发表于 Dev

李相镇

我做了一个合并文本文件的代码。但它的工作速度太慢，我想将字符串更改为 stringbuilder。但效果不佳。如何将字符串更改为字符串生成器？

    private void button3_Click(object sender, EventArgs e)
    {
        string[] Text1 = new[] { this.textBox1.Text };
        string[] Text2 = new[] { this.textBox2.Text };

        string[] Word1 = this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
        string[] Word2 = this.textBox2.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);


        //            this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);

        if (Word1.Length > 0)
        {
            for (int i = 0, j = 0; i < Word1.Length; i++)
            {
                if (!string.IsNullOrEmpty(string.Join("", Word1[i])))
                {
                    this.textBox3.Text = this.textBox3.Text + Word1[i];
                }
                else
                {
                    this.textBox3.Text = this.textBox3.Text + Word2[j];
                    j = j + 1;
                }
                this.textBox3.Text = this.textBox3.Text + "\r\n";
            }
        }
    }

罗马诺·赞贝

我认为您的问题不是字符串的使用，而是您在用户控件中工作。这应该快得多：

private void button3_Click(object sender, EventArgs e)
{
    string[] Text1 = new[] { this.textBox1.Text };
    string[] Text2 = new[] { this.textBox2.Text };

    string[] Word1 = this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
    string[] Word2 = this.textBox2.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);


    //            this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);

    string outStr = string.Empty;

    if (Word1.Length > 0)
    {
        for (int i = 0, j = 0; i < Word1.Length; i++)
        {
            if (!string.IsNullOrEmpty(string.Join("", Word1[i])))
            {
                outStr = outStr + Word1[i];
            }
            else
            {
                outStr = outStr + Word2[j];
                j = j + 1;
            }
            outStr = outStr + "\r\n";
        }

        this.textBox3.Text = outStr;
    }
}

字符串生成器

这是一个解决方案StringBuilder：

private void button3_Click(object sender, EventArgs e)
{
    string[] Text1 = new[] { this.textBox1.Text };
    string[] Text2 = new[] { this.textBox2.Text };

    string[] Word1 = this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
    string[] Word2 = this.textBox2.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);


    //            this.textBox1.Text.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);

    StringBuilder outStr = new StringBuilder();

    if (Word1.Length > 0)
    {
        for (int i = 0, j = 0; i < Word1.Length; i++)
        {
            if (!string.IsNullOrEmpty(string.Join("", Word1[i])))
            {
                outStr.Append(Word1[i]);
            }
            else
            {
                outStr.Append(Word2[j]);
                j = j + 1;
            }
            outStr.Append(Environment.NewLine);
        }

        this.textBox3.Text = outStr.ToString();
    }
}

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