我正在尝试使用以下查询搜索数据库：
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-11-44e890d9998b> in <module>()
4 import seaborn as sns
5 import os
----> 6 import cv2
7 import random
8 from keras.models import Sequential
ImportError: dlopen(/anaconda3/lib/python2.7/site-packages/cv2.so, 2): Library not loaded: @rpath/libjasper.1.dylib
Referenced from: /anaconda3/lib/libopencv_highgui.2.4.13.dylib
Reason: image not found
但是无论其中一个字段中是否有// With hooks for rn
import React, { useState, useEffect } from 'react'
import {
Text,
View,
TouchableOpacity,
Image,
StyleSheet
} from 'react-native'
import styles from '../../assets/styles'
const usePanelExpanding = (props) => {
let icons = {
'up': require('../../images/formicons/icons/close.png'),
'down': require('../../images/formicons/icons/disclosure.png')
}
const [expanded, setExpanded] = useState(false);
const [iconShow, setIconShow] = useState('up');
const [textSwap, setTextSwap] = useState('Show more...');
useEffect(
() => {
expanded ? setIconShow('up') : setIconShow('down')
expanded ? setTextSwap('Show less') : setTextSwap('Show more ...')
},
[expanded]
);
const toggle = () =>{
setExpanded(!expanded)
}
const panel = (<View>
<View style={styles.titleContainer} >
<TouchableOpacity
style={styles.button}
onPress={toggle} >
<Image
style={styles.buttonImage}
source={icons[iconShow]} />
</TouchableOpacity>
</View>
{expanded && <View style={styles.mainPageFull} >
{props}
</View>
}
</View>)
return {
panel,
toggle
}
}
export default usePanelExpanding
// How to use it from a parent function
const expandingBioObject = usePanelExpanding(<Text>{profile.bio}</Text>)
<Card title="Biography" containerStyle={styles.CardContainerBio}>
{expandingBioObject.panel}
</Card>
，我都会收到SELECT jobunique, jobtypeunique, joblat, joblng FROM job WHERE
jobdeleted = 0
AND
jobpayed = 1
AND
(LOWER(jobtitle) LIKE '%taxi%'
OR LOWER(jobmaincategory) LIKE '%taxi%'
OR LOWER(jobsubcategory) LIKE '%taxi%'
OR LOWER(jobdescription) LIKE '%taxi%'
OR LOWER(jobcountry) LIKE '%taxi%')
AND
(
jobbusiness = 1 AND jobstartdate <= CURDATE() AND jobenddate >= CURDATE()
) OR
(
jobbusiness = 0 AND jobfixedstartdate = 0 AND jobfixedenddate = 0 AND jobdateadded >= (CURDATE()-INTERVAL 60 DAY)
) OR
(
jobbusiness = 0 AND jobfixedstartdate = 1 AND jobfixedenddate = 0 AND jobstartdate >= CURDATE()
) OR
(
jobbusiness = 0 AND jobfixedstartdate = 1 AND jobfixedenddate = 1 AND jobenddate <= CURDATE()
)
处的所有行。有人可以向我解释原因吗？谢谢
答案 0 :(得分：4)
您需要在最后一组OR个条件周围加上一组括号，否则最后三个条件仅会OR个与其他条件无关。请注意，您不需要在()条条件下使用AND，因为无论如何AND都比OR优先。将您的WHERE条件的最后一部分更改为此可以解决问题：
AND (
jobbusiness = 1 AND jobstartdate <= CURDATE() AND jobenddate >= CURDATE()
OR
jobbusiness = 0 AND jobfixedstartdate = 0 AND jobfixedenddate = 0 AND jobdateadded >= (CURDATE()-INTERVAL 60 DAY)
OR
jobbusiness = 0 AND jobfixedstartdate = 1 AND jobfixedenddate = 0 AND jobstartdate >= CURDATE()
OR
jobbusiness = 0 AND jobfixedstartdate = 1 AND jobfixedenddate = 1 AND jobenddate <= CURDATE()
)