解释下述代码:$sql = "select `v_name`,`v_tel`,`company`,`car_num`,`date`,`reason`,`college`,`teacher`,`t_tel`,`time`,`gate` from apply where apply_id='$apply_id'"; $result = mysqli_query($conn,$sql); if($result) { $res = mysqli_fetch_assoc($result); foreach ( $res as $key => $value ) { $res[$key] = urlencode ( $value ); } echo urldecode( json_encode($res)); }else{ echo mysqli_error($conn); }
时间: 2023-06-03 22:08:02 浏览: 118
这是一段PHP代码,将数据库中的一条记录以JSON格式输出。首先通过SQL语句查询apply表中apply_id与变量$apply_id相等的记录的v_name, v_tel, company, car_num, date, reason, college, teacher, t_tel, time 和 gate字段的值。如果查询成功,将查询结果以关联数组$res的形式读取,并循环对每个值进行URL编码,最后将$res以JSON格式输出。如果查询失败,则输出错误信息。
相关问题
函数calc(),用于实现任意数量对象的加法操作。请将下述程序补充完整并上机调试,实现上述功能。 期望的执行结果为: 10 240 def calc( ____1_____ ): s=0 ________2_______in num: s=s+i return s result1=calc(1,2,3,4) result2=calc(12,-1,100,30,49,50) print(result1,result2)
下面是完整程序的代码:
```python
def calc(*num):
s = 0
for i in num:
s += i
return s
result1 = calc(1, 2, 3, 4)
result2 = calc(12, -1, 100, 30, 49, 50)
print(result1, result2)
```
程序解析:
- 函数定义时使用了 *args 的形式,表示可接受任意数量的参数。
- 在函数体内,使用 for 循环遍历每一个参数并将其相加。
- 返回相加后的结果。
- 在主程序中分别调用 calc 函数,并将结果打印出来。
请将下述代买转化为python :cd ${HELPs_project_directory} cd ${HELPs_project_directory} file_type_set=('*.h' '*.c' '*.cpp' '*.inl') num_file_type=${#file_type_set[@]} for ((i=0;i<${num_file_type};i++)); do file_type=${file_type_set[${i}]} file_list=`find "$(pwd -P)" -name "${file_type}"` for file in ${file_list}; do clang-format -i -verbose $file done done
Sure! Here's the Python equivalent of the given code:
```python
import os
import subprocess
project_directory = os.environ.get('HELPs_project_directory')
file_type_set = ['*.h', '*.c', '*.cpp', '*.inl']
num_file_type = len(file_type_set)
for i in range(num_file_type):
file_type = file_type_set[i]
file_list = subprocess.check_output(['find', '-L', os.path.abspath(project_directory), '-name', file_type]).decode().splitlines()
for file in file_list:
subprocess.run(['clang-format', '-i', '-verbose', file])
```
Please note that this Python code assumes that the `HELPs_project_directory` environment variable is already set. It uses `subprocess` module to execute the `find` and `clang-format` commands.
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