我有一些效果很好的C代码：

#include

#include

int main()

{

FILE *fp;

struct emp

{

char name[40];

int age;

float bs;

};

struct emp e;

fp=fopen("EMPLOYEE.DAT","r");

if(fp==NULL)

{

puts("Cannot open file";

exit(1);

}

while(fscanf(f,"%s %d %f",&e.name,&e.age,&e.bs)!=EOF)

printf("%s %d %f\n",e.name,e.age,e.bs);

fclose(fp);

return 0;

}

EMPLOYEE.DAT中的数据：

Sunil 34 1250.50

Sameer 21 1300.50

rahul 34 1400.50

我在将此代码转换为Python时遇到问题：

while(fscanf(f,"%s %d %f",&e.name,&e.age,&e.bs)!=EOF)

printf("%s %d %f\n",e.name,e.age,e.bs);

有没有办法在Python中实现它？什么是退出()&的Pythonic替代品？ EOF？

解决方法:

就像是：

with open("EMPLOYEE.DAT") as f: # open the file for reading

for line in f: # iterate over each line

name, age, bs = line.split() # split it by whitespace

age = int(age) # convert age from string to int

bs = float(bs) # convert bs from string to float

print(name, age, bs)

如果要将数据存储在结构中,可以使用内置字典类型(哈希映射)

person = {'name': name, 'age': age, 'bs': bs}

person['name'] # access data

或者你可以定义自己的类：

class Employee(object):

def __init__(self, name, age, bs):

self.name = name

self.age = age

self.bs = bs

e = Employee(name, age, bs) # create an instance

e.name # access data

编辑

如果文件不存在,这是一个处理错误的版本.并返回退出代码.

import sys

try:

with open("EMPLOYEE.DAT") as f:

for line in f:

name, age, bs = line.split()

age = int(age)

bs = float(bs)

print(name, age, bs)

except IOError:

print("Cannot open file")

sys.exit(1)

标签：python,c-3,python-2-7

来源： https://codeday.me/bug/20190529/1175280.html