Question

使用这个简单的代码。按钮不显示......奇怪

class ProgramExecution(QtCore.QThread):

_signalStatus = QtCore.pyqtSignal(str)

def __init__(self, ESP300, output, outputpd, program):
    QtCore.QThread.__init__(self)
    self.newport = ESP300
    self.output = output
    self.outputpd = outputpd
    self.program = program

def __del__(self):
    self.wait()

def run(self):
    text = str(self.program.toPlainText())
    lines = text.split('\n')
    for line in lines:
        arg = []
        List = line.split(',')
        for word in List:
            arg.append(word.strip())

        if arg[0].lower() == 'move':
            if arg[1].lower() == 'x':
                self.newport.move_x(float(arg[2]))
            elif arg[1].lower() == 'y':
                self.newport.move_y(float(arg[2]))
            elif arg[1].lower() == 'z':
                self.newport.move_z(float(arg[2]))
        elif arg[0].lower() == 'wait':
            self.newport.wait()
        elif arg[0].lower() == 'home':
            self.newport.home()
            while True:
                try:
                    self.GetPosition()
                except:
                    time.sleep(0.5)
                else:
                    if self.newport.x == 0 and self.newport.y == 0 and self.newport.z == 0:
                        break
        elif arg[0].lower() == 'power on':
            self.newport.power_on(arg[1])
        elif arg[0].lower() == 'power off':
            self.newport.power_off(arg[1])
        elif arg[0].lower() == 'pos':
            self.newport.pos_x(arg[1])
            self.newport.pos_y(arg[2])
            self.newport.pos_z(arg[3])
            while True:
                try:
                    self.GetPosition()
                except:
                    time.sleep(0.5)
                else:
                    time.sleep(1)
                    break
        elif arg[0].lower() == 'get pos':
            self.GetPosition()
        elif arg[0].lower() == 'get error':
            self.GetError()
        elif arg[0].lower() == 'get pow':
            print(self.outputpd.toPlainText())

        time.sleep(2)

Answer 1

<?php
  if (have_posts()) :
    while (have_posts()) :
        the_post();
        the_content();
        if (is_singular('attachment')) {
             // Parent post navigation.
             the_post_navigation(array(
            'prev_text' => _x('<span class="meta-nav">Published in</span><span class="post-title">%title</span>', 'Parent post link', 'themename'),
           ));
          } elseif (is_singular('post')) {
             // Previous/next post navigation.
             the_post_navigation(array(
            'next_text' => '<span class="meta-nav" aria-hidden="true">' . __('Next', 'themename') . '</span> ' .
            '<span class="screen-reader-text">' . __('Next post:', 'themename') . '</span> ' .
            '<span class="post-title">%title</span>',
            'prev_text' => '<span class="meta-nav" aria-hidden="true">' . __('Previous', 'themename') . '</span> ' .
            '<span class="screen-reader-text">' . __('Previous post:', 'themename') . '</span> ' .
            '<span class="post-title">%title</span>',
        ));
     }
  endwhile;
  endif;
?>

尝试使用此代码进行帖子分页，

不要在wordpress循环中使用上一个和下一个按钮。即使不向他们展示

1 个答案: