需求：

字符串中只有regex pattern

方法：

@H_403_14@1. Python

a. Global function

import re

if re.search("regex pattern\Z",subject):

print "Match Pass!"

else:

print "Match Fail!"

b. Compiled object

import re

reobj = re.compile("regex pattern\Z")

if reobj.search(subject):

print "Match Pass!"

else:

print "Match Fail!"

@H_403_14@2. Tcl

set result [regexp -linestop {\Aregexp pattern\Z} $subject]

if {$result == 1} {

puts "Match Pass!"

} else {

puts "Match Fail!"

}