Question

如果句子以大写字母开头并以Python中的[？。！]结尾，我需要匹配。

编辑结尾必须只有[？。！] ，但在句子中允许使用其他标点符号

import re
s = ['This sentence is correct.','This sentence is not correct', 'Something is !wrong! here.','"This is an example of *correct* sentence."']

# What I tried so for is:
for i in s:
    print(re.match('^[A-Z][?.!]$', i) is not None)

它不起作用，经过一些更改，我知道^[A-Z]部分是正确的，但最后匹配标点符号是错误的。

Answer 1

我让它为自己工作，只是为了澄清或者如果其他人有同样的问题，这就是我的诀窍：

re.match('^[A-Z][^?!.]*[?.!]$', sentence) is not None

<强>说明： ^[A-Z]在哪里寻找资本

'[^?!.]*'表示开头和结尾之间的所有内容都可以，但包含?或!或.

的内容除外

[?.!]$必须以?或!或.

结尾

Answer 2

使用以下正则表达式。

php artisan config:clear
php artisan cache:clear

正则表达式演示：https://regex101.com/r/jpqTQ0/2

^[A-Z][\w\s]+[?.!]$

输出：

import re
s = ['This sentence is correct.','this sentence does not start with capital','This sentence is not correct']

# What I tried so for is:
for i in s:
    print(re.match('^[A-Z][\w\s]+[?.!]$', i) is not None)

Working code demo

Answer 3

您的正则表达式检查05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x41c1dc08) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: java.lang.NoClassDefFoundError: org.apache.poi.util.POILogFactory 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at org.apache.poi.hssf.usermodel.HSSFWorkbook.<clinit>(HSSFWorkbook.java:156) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at com.mindtech.mindcubecanvas.ReadInventory.saveExcelFile(ReadInventory.java:2006) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at com.mindtech.mindcubecanvas.ReadInventory$4$4.onClick(ReadInventory.java:475) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.view.View.performClick(View.java:4653) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.view.View$PerformClick.run(View.java:19294) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.os.Handler.handleCallback(Handler.java:733) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.os.Looper.loop(Looper.java:146) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5603) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at java.lang.reflect.Method.invokeNative(Native Method) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at java.lang.reflect.Method.invoke(Method.java:515) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099) 05-03 12:32:12.803 27227-27227/com.mindtech.mindcubecanvas W/System.err: at dalvik.system.NativeStart.main(Native Method)范围内的单个数字。你应该改为：

[A-Z]

将^[A-Z].*[?.!]$更改为大写字母与字符串末尾标点符号之间匹配的内容。

Python正则表达式匹配字符串

3 个答案: