我有一个int
的列表,范围从0
到99
,例如center_nodes=[51,52]
,我想执行一个简单的操作:
取第一个元素center_nodes[0]
,得到它的第一个数字first=str(center_nodes[0])[0]
,然后根据数字本身为其添加int
。
示例:如果first=5
,则result=int(center_nodes[0])+int(first)
。在这种情况下,它应该产生56
。
我写了一段代码来做这件事,但我总是得到0
。我必须犯一些非常愚蠢的错误,我怀疑它是result
变量的初始化,在脚本中称为grid_coord
。
我的尝试:
#code block to compute the center_nodes[] list
#here comes my script:
first=str(center_nodes[0])[0] #Get the first figure of element 0 of center_nodes
print('first figure: '+str(first))
grid_coord=None
if len(str(center_nodes[0]))==1: #Check if center_nodes[0] is in the 0-9 range
grid_coord=int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
elif len(str(center_nodes[0]))==2: #Check if center_nodes[0] is in the 10-99 range
if first==1: #Checks the first digit of center_nodes[0] and then adds it to int(center_nodes[0])
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==2: #Check the second digit...
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==3: #Check the third digit...
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==4: #4th
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==5: #5th
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==6: #6th
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==7: #7th
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==8: #8th
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
if first==9: #9th and last
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
对于center_nodes=[51,52]
,我应该grid_coord=56
,但我会得到grid_coord=0
。我应该改变什么?
答案 0 :(得分:2)
first=str(center_nodes[0])[0] #Get the first figure of element 0 of center_nodes
grid_coord=None
if len(str(center_nodes[0]))==1: #Check if center_nodes[0] is in the 0-9 range
grid_coord=int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
elif len(str(center_nodes[0]))==2: #Check if center_nodes[0] is in the 10-99 range
grid_coord=int(center_nodes[0])+int(first)
print('Grid coord for center giant comp is: '+str(grid_coord))
答案 1 :(得分:1)
如果我的理解是正确的,你需要像:
l = [51, 52, 83]
for item in l:
newItem = int(str(item)[0]) + item
print newItemt