Question

我有一个函数，用于更新具有特定id的文本字段中的值：

from Tkinter import *
import Tkinter, Tkconstants, tkFileDialog

def askopenfile():
        # If you want to browse files.
        path_to_file = tkFileDialog.askopenfilename() # for a file
        # If you want to browse directories.
        path_to_folder = tkFileDialog.askdirectory() # for a directory
        print "File: " + path_to_file
        print "Folder: " + path_to_folder 

root = Tk()
b = Button(root, text="CLICK ME", command=askopenfile)
b.pack()
root.mainloop()

我这样称呼它多次：

function UpdateField(name, val)
{
      var fieldId = "pv-" + name;
      document.getElementById(fieldId).value = val;
}

问题是前两个字段是空白的，只有最后一个字段（field3）才能获得正确的值。如果我删除了第三个UpdateField("field1", "somevalue"); UpdateField("field2", "othervalue"); UpdateField("field3", "qwerty");电话，那么field2将是正确的，但第一个将是空白的。

Answer 1

这是您工作代码的小提琴：

https://jsfiddle.net/qzbxa9qa/

function UpdateField(name, val) {
    var fieldId = "pv-" + name;
    document.getElementById(fieldId).value = val;
}

UpdateField("field1", "somevalu1e");
UpdateField("field2", "othervalue2");
UpdateField("field3", "qwe3rty");

<input id="pv-field1" />
<input id="pv-field2" />
<input id="pv-field3" />

似乎你的标记中有拼写错误

JavaScript只有最后一个文本字段值才会更新

1 个答案: