Question

我写了一个脚本以这种方式从字符串中删除R $：

$money ="R$ 100,00";
$charactersToBeRemoved = array("R", "$", " ");
$changedValue = str_replace($charactersToBeRemoved, "", $money);

这个脚本在主脚本上运行正常，但如果我为它创建一个函数，如：

    function removeDollar($x) {       
       $charactersToBeRemoved = array("R", "$", " "); 
       $changedValue = str_replace($charactersToBeRemoved, "", $x); 
       return $changedValue;    
    }    

   $money = "R$100,00";           
   $newValue = removeDollar($money);
   echo $newValue;

$newValue仍显示R $ 100,00。

注意：

此函数是在functions.php文件中创建的，其中include函数已包含在主脚本中。

我真的不知道自己做错了什么。

Answer 1

正常工作

import UIKit

class ViewController: UIViewController, UINavigationControllerDelegate, UIViewControllerTransitioningDelegate {

    override func viewDidLoad() {
        if transitioningDelegate != nil {
            print("Should do something...")
            print(transitioningDelegate)
        } else {
            print("Transitioing Delegate set to nil")
        }
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        self.navigationController?.delegate = self

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    let customPresentAnimationController = CustomPresentAnimationController()
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        print("doing our custom transition")
        print(segue.destination)
        let destination = segue.destination
        destination.transitioningDelegate = customPresentAnimationController
    }
}

您可以在此PHP Sandbox example

中查看上述代码

并且工作得很好（在你的例子中）

Transitioing Delegate set to nil
doing our custom transition
<moduleView.ViewController: 0x7fe427f09a40>
Should do something...
Optional(<moduleView.CustomPresentAnimationController: 0x60800002e980>)

您可以在此PHP Sandbox example

中查看上述代码

如果您需要检查所有字符串字符

    function removeDollar($x) {
       $charactersToBeRemoved = array("R", "$", " ");
       $removeTo = array("","","");
       $changedValue = str_replace($charactersToBeRemoved, $removeTo, $x);
       return $changedValue;
    }

   $money = "R$100,00";
   $newValue = removeDollar($money);
   echo $newValue;
   // output 100,00

您可以在此PHP Sandbox example

中查看上述代码

删除美元符号功能不起作用

1 个答案: