我还有一个问题，我在Python中有这个数组：
import numpy as np
A = np.zeros((5));
A[0] = 2;
A[1] = 3;
A[2] = 7;
A[3] = 1;
A[4] = 8;
我想要做的是删除A[i] for i from 2 to 4，也就是说我正在寻找这样的命令：
A = np.delete(A, [2:4])但不幸的是它不起作用，因为我在这里看到了文档：http://docs.scipy.org/doc/numpy/reference/generated/numpy.delete.html但它对我没有帮助。
感谢您的帮助！
答案 0 :(得分：1)
如果你想要的是从numpy数组中删除位置，你可以使用：
np.delete(A, slice(2,5)) # note that the interval is inclusive, exclusive [2, 5)
答案 1 :(得分：0)
您需要使用的是<?php
session_start();
// always start your session before any other code
$host = "localhost";
$user = "root";
$password = "";
mysql_connect($host,$user,$password);
mysql_select_db("testdb") or die(mysql_error());
if(isset($_POST["btnSubmit"]))
{
$num1 = mysql_real_escape_string($_POST["num1"]);
$num2 = mysql_real_escape_string($_POST["num2"]);
$num3 = mysql_real_escape_string($_POST["num3"]);
$num4 = mysql_real_escape_string($_POST["num4"]);
// mysql isn't the safest way to put your code out, however if you do, escape it. You may be better off by using prepared statements, but thats up to you, i am just fixing this code
mysql_query("insert into table1(num1,num2,num3,num4)
values ('$num1','$num2','$num3','$num4')");
}
?>
，但是您需要传递正确的第二个参数，例如：
numpy.delete