Question

我有一个涉及编程的学校项目。我在批处理和python之间进行转换，因为这对我来说最简单。

这是我用python编写的代码：

for i,x in enumerate(result):
    if number in x:
        print "Start of 1"
        cursor.execute(insert1, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("extracommands.bat 1")
        print "Found Number"
    else:
        print "Start of 2"
        cursor.execute(insert1, (number))
        cursor.execute(insert2, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("emailfine.py 1")
        print "Finished 2"

我的问题是我无法在元组中找到字符串。结果是，当有结果时，它会完美运行。但是当没有结果时，没有任何反应。

我怎样才能克服这个？

提前谢谢。

编辑：

在问我的问题时，我可能不够具体。

result变量实际上是使用fetchall()命令的MySQL执行结果。我的程序的整个代码是：

import MySQLdb
import sys
import os
print "=========================="
print "Start Registered_Or_Not.py"
print "=========================="

os.chdir("C:/DisabledParkingSpacesImages/textfiles")

f = open("numberplate.txt", "r")
number = f.read()

print number

try:
    db = MySQLdb.connect(
        host = 'localhost',
        user = 'root',
        passwd = 'jordan',
        db = 'disabledparking'
        )
except Exception as e:
    sys.exit("Can't access the database")

print "MySQL Connection OK" 

cursor = db.cursor()
cursor.execute("SELECT registration FROM registered WHERE EXISTS (SELECT 1 FROM limbo WHERE limbo.registration = registered.registration)")
result = cursor.fetchall()

insert1 = "INSERT INTO log (registration, time, date) VALUES(%s, CURRENT_TIME, CURRENT_DATE);"
insert2 = "INSERT INTO not_registered (registration, time, date) VALUES(%s, CURRENT_TIME, CURRENT_DATE);"
delete = "DELETE FROM limbo WHERE registration=%s;"

print "-------------"
print "Result:"
print result
print "-------------"

TrueFalse = False

for i,x in enumerate(result):
    if number in x:
        print "Start of 1"
        cursor.execute(insert1, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("extracommands.bat 1")
        print "Found Number"
        TrueFalse = True
    elif TrueFalse == False:
        print "Start of 2"
        cursor.execute(insert1, (number))
        cursor.execute(insert2, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("emailfine.py 1")
        print "Finished 2"

db.commit()

Answer 1

好的，所以我回答了我自己的问题。

以下是有问题的代码：

for i,x in enumerate(result):
    if number in x:
        print "Start of 1"
        cursor.execute(insert1, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("extracommands.bat 1")
        print "Found Number"
    else:
        print "Start of 2"
        cursor.execute(insert1, (number))
        cursor.execute(insert2, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("emailfine.py 1")
        print "Finished 2"

这是一个没有问题的代码：

for i,x in enumerate(result):
    if number in x:
        print "Start of 1"
        cursor.execute(insert1, (number))
        cursor.execute(delete, (number))
        f.close()
        os.system("extracommands.bat 1")
        print "Found Number"
        TrueFalse = True
if TrueFalse == False:
    print "Start of 2"
    cursor.execute(insert1, (number))
    cursor.execute(insert2, (number))
    cursor.execute(delete, (number))
    f.close()
    os.system("emailfine.py 1")
    print "Finished 2"

for and in and enumerate and if ...... AHHHHHHH

1 个答案: