我有一个表格对象。
我想检查第一行是否具有 Test 的值,在这种情况下,我需要对表中的每一行执行一些操作。
否则,如果第一行没有 Test 的值,我需要跳过该行并对第 1 行及以后的行执行一些操作。
因为我既需要索引又需要行,所以我不得不使用enumerate,但似乎我使用它的方式很乱。在这里,我调用了两次 enumerate 并两次检查索引是否为 0。有更简洁的方法吗?
for i, r in enumerate(null_clipData.rows()):
if r[0].val == 'Test':
# Do something if the first row is Test
for index, row in enumerate(null_clipData.rows()):
if index == 0:
continue # But do anything the first time (stay in this loop though)
print(index, row)
break # All through with test row
if i == 0:
continue # Don't do anything with the first row if the value was not Test
print(i, r) # Do something with i and r
请您参考如下方法:
按照 Kevin 的建议,您可以单独处理第一项,然后继续循环:
rows = iter(null_clipData.rows())
firstRow = next(rows)
specialHandling = firstRow.val == 'Test'
for i, r in enumerate(rows, start=1):
if specialHandling:
# do something special with r
else:
# do the normal stuff with r
或者,您也可以将其保持在一个循环中:
specialHandling = False # default case
for i, r in enumerate(null_clipData.rows()):
if i == 0: # first item
specialHandling = r == 'Test'
continue
if specialHandling:
# do something special with r
else:
# do the normal stuff with r
