c#中提示錯誤“常量中有換行符”和“字符文本中的字符太多”

的確挺亂的，壹是分行要註意，二是引用。改如下：string strsql ="insert into register(username,password,sex,picture,im,information,others,ifisuser) values('" +

TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.Text + "','" + TextBox3.Text + "','"

+ TextBox4.Text + "','" + TextBox5.Text + "','" + TextBox6.Text + "',0)";