我想将值“o to p”子串到两个字符串变量中，如此
def process_events(self):
button = pygame.mouse.get_pressed()
mouse_pos = pygame.mouse.get_pos()
for control_id in reversed(self.__z_order):
state = self.__control_list[control_id]['state']
if state in ('deleted', 'disabled') or not self.__control_list[control_id]['draw']:
continue
if self.__control_list[control_id]['rect'].collidepoint(mouse_pos):
# left mouse is pressed
if button[0]:
# current state of this control is hot and left mouse is pressed on it
if state == 'hot':
for x in self.__z_order[0:control_id - 1]:
if self.__control_list[x]['state'] == 'pressed':
self.__control_list[x]['state'] = 'normal'
can_change = True
for x in self.__z_order[control_id + 1:]:
if self.__control_list[x]['state'] == 'pressed':
can_change = False
break
# change the state to pressed
if can_change:
self.__control_list[control_id]['state'] = 'pressed'
self.__control_list[control_id]['mouse_pos_lclick'] = None
self.__control_list[control_id]['mouse_pos_ldown'] = mouse_pos
if self.__control_list[control_id]['on_hover_called']:
self.__draw_tip = None
if (time.clock() - self.__control_list[control_id][
'dbl_timer'] >= self.__dbl_click_delay) and \
(time.clock() - self.__control_list[control_id]['timer'] <= self.__dbl_click_speed):
if self.__event_mode:
if self.__control_list[control_id]['on_dbl_lclick']:
self.__control_list[control_id]['on_dbl_lclick']()
else:
self.__messages.append(self.Message(control_id, PGC_LBUTTONDBLCLK))
# print('Double click', self.__control_list[control_id]['text'])
self.__control_list[control_id]['dbl_timer'] = time.clock()
self.__control_list[control_id]['timer'] = -1
break
# go through the controls from top to bottom first
for control_id in reversed(self.__z_order):
state = self.__control_list[control_id]['state']
if state in ('deleted', 'disabled') or not self.__control_list[control_id]['draw']:
continue
# check if the mouse is over this control
if self.__control_list[control_id]['rect'].collidepoint(mouse_pos):
# left mouse is not down
if not button[0]:
# state is currently pressed
if state == 'pressed':
# check if there's a timer initiated for this control
# this prevents 2 clicks + a double click message
if self.__control_list[control_id]['timer'] >= 0:
self.__control_list[control_id]['dbl_timer'] = -1
self.__control_list[control_id]['timer'] = time.clock()
# if the event mode
if self.__event_mode:
# call the function if there is one
if self.__control_list[control_id]['on_lclick']:
self.__control_list[control_id]['on_lclick']()
else:
# post the message to the messages queue
self.__messages.append(self.Message(control_id, PGC_LBUTTONUP))
# print('Click', self.__control_list[control_id]['text'])
# the timer is < 0 (should be -1), double click just happened
else:
# reset the timer to 0 so clicking can happen again
self.__control_list[control_id]['timer'] = 0
# go through all of the ids below this control
for x in self.__z_order[0:control_id - 1]:
# set all the hot controls to normal
if self.__control_list[x]['state'] == 'hot':
self.__control_list[x]['state'] = 'normal'
can_change = True
# go through all the controls on top of this control
for x in self.__z_order[control_id + 1:]:
# something else is on top of this and it's already hot, can't change this control
if self.__control_list[x]['state'] == 'hot':
can_change = False
break
if can_change:
self.__control_list[control_id]['state'] = 'hot'
self.__control_list[control_id]['mouse_pos_lclick'] = mouse_pos
self.__control_list[control_id]['mouse_pos_ldown'] = None
# state is not currently hot (but we're hovering over this control)
elif state != 'hot':
# check for any other contorls
for x in self.__z_order[0:control_id - 1]:
if self.__control_list[x]['state'] == 'hot':
self.__control_list[x]['state'] = 'normal'
can_change = True
for x in self.__z_order[control_id + 1:]:
if self.__control_list[x]['state'] == 'hot':
can_change = False
break
# change the state to hot
if can_change:
self.__control_list[control_id]['state'] = 'hot'
self.__control_list[control_id]['mouse_pos_hover'] = mouse_pos
# used to start a tooltip (needs work)
self.__control_list[control_id]['mouse_pos_rect'] = pygame.Rect(mouse_pos[0] - 7,
mouse_pos[1] - 7,
mouse_pos[0] + 7,
mouse_pos[1] + 7)
# state is currently 'hot'
else:
# timer for on_hover hasn't been initialized
if self.__control_list[control_id]['timer_on_hover'] == 0:
self.__control_list[control_id]['timer_on_hover'] = time.clock()
# mouse is in the area
if self.__control_list[control_id]['mouse_pos_rect'].collidepoint(mouse_pos):
# if the on_hover hasn't been triggered and there is a timer for the on_hover
if not self.__control_list[control_id]['on_hover_called'] and self.__control_list[control_id]['timer_on_hover']:
# if the mouse has been in the hover area for 1.5 seconds or more
if time.clock() - self.__control_list[control_id]['timer_on_hover'] >= 1.5:
# trigger the hover
self.__control_list[control_id]['on_hover_called'] = True
# on_hover is a function call, call the function
if self.__control_list[control_id]['on_hover']['type'] == 'function':
self.__control_list[control_id]['on_hover']['func'](self.__control_list[control_id]['on_hover']['args'])
# on_hover is a tip, set the self.__draw_tip variable to the tip we need
else:
self.__draw_tip = self.__control_list[control_id]['on_hover'].copy()
self.__draw_tip['rect'].x = mouse_pos[0]
self.__draw_tip['rect'].y = mouse_pos[1]
# mouse is not in the control rect and the state is not currently normal
elif state != 'normal':
# set it to normal
self.__control_list[control_id]['state'] = 'normal'
# clear the on_hover stuff
if self.__control_list[control_id]['on_hover_called']:
self.__control_list[control_id]['on_hover_called'] = False
self.__draw_tip = None
if self.__control_list[control_id]['timer_on_hover']:
self.__control_list[control_id]['timer_on_hover'] = 0
我试图对此代码进行子串，但它似乎不起作用。
o
p
这会返回“to p”
答案 0 :(得分：4)
试试这个：
String[] output = "o to p".split(" to ");
String var1 = output[0]; // "o"
String var2 = output[1]; // "p"
答案 1 :(得分：1)
如果你想在没有split的情况下这样做（这更容易，但无论如何）：
int pos = rt.indexOf(" to ");
String var1 = rt.substring(0, pos);
String var2 = rt.substring(pos + " to ".length());
您缺少的是indexOf返回搜索字符串 start 的位置;如果你想要它后面的内容，你需要增加索引的长度。
答案 2 :(得分：0)
String arr[] = rt.split("to");
//arr[0] is the 1st part and arr[1] second.