Validate Matches in Procedural Code (用程序码验证匹配)
需求: 获取字符串Do you like 2, 3,4 , 6?中的2, 4, 6
方法: 1. Python a. Global function import re subject = "Do you like 2, 3,4 , 6?" result = [] for matchobj in re.finditer(r"d+",subject): if int(matchobj.group()) % 2 == 0: result.append(matchobj.group())
print result
b. Compiled object import re subject = "Do you like 2, 3,4 , 6?" result = []
reobj = re.compile("d+") for matchobj in reobj.finditer(subject): if int(matchobj.group()) % 2 == 0: result.append(matchobj.group())
print result
2. Tcl set subject "Do you like 2, 3,4 , 6?" set result "" set pos 0 while {[regexp -indices -start $pos -linestop {d+} $subject offsets]==1} { set sTmp[string range $subject [lindex $offsets 0] [lindex $offsets 1]] if {$sTmp % 2 == 0} { lappend result $sTmp } foreach i $result { puts "$i" } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |