arcgis Field Calculator

arcgis Field Calculator

A, VB Script

1, taken after several or a few fields before

Left (field names, 6 )
 Right (field names, 6 )

2, and the combined field, the middle symbol

Dim a
if [ZDDM2] ="" Then
a= [ZDDM1] 
else
a= [ZDDM1] + "/" + [ZDDM2] 
end if

3, ifelse Analyzing

dim u
if [OBJECTID] =1 then
u="a"
elseif   [OBJECTID] =2 then
u="b"
end if

Note: No matter how many if, as long as the end if a write on the line.

4, unified assignment

 

 5, fuzzy query

ZDDM LIKE'%JC%'

 

Two, Python script

1, string + date + supplements from Qi

 

REC = 0 # no spaces 
DEF autoIncrement (): # no spaces, defined a method name 
 Global REC # a space 
 PSTART =. 1 # a space, the initial value may be adjusted 
 pInterval =. 1 # a space, the self-energizing interval may be adjusted 
 IF ( == 0 REC): # a space 
  REC = PSTART # two spaces 
 the else : # a space 
  REC REC = + pInterval # two spaces 
 return  " the TD " . datetime.datetime.now + () the strftime ( ' % m the Y% D% ' ) + ' % 08D ' % REC #A space, string + time + supplements from Qi