Bash Code
| 1 | echo "hello world." | 
C code
| 1 2 3 4 5 6 | #include <stdio.h> ; int main(int argc, char *argv[]) {     printf("hello, world.\n");     return 0 } | 
Python code
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | ''' Created on 2011-5-5 @author: Jay Ren ''' def dict_test():     a_dict = {'server':'Apache','db':'MySQL'}     print(a_dict['db'])     a_dict['os'] = 'Linux'     print(a_dict)     a_dict['db'] = 'Oracle'     print(a_dict['db'])     b_dict = {1:['Jay','Yongjie'], 2:['Afra','Xuejiao']}     print(len(b_dict))     print(b_dict[2][1]) if __name__ == '__main__':     dict_test() |