python 函数浅尝 （斐济函数)

IndentationError: unexpected indent
>>> def fib(n):
...     """Print a Fibonacci series up to n"""
...     a , b = 0 , 1
...     while a < n:
...             print(a,end=' ')
...             a, b = b ,a+b
...     print()
...
>>>
...     fib(2000)
  File "<stdin>", line 2
    fib(2000)
    ^
IndentationError: unexpected indent
>>>
...  fib(2000)
  File "<stdin>", line 2
    fib(2000)
    ^
IndentationError: unexpected indent
>>> fib(2000)
0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597
python函数的调用方式与其它语言的方式没有多但的区别，倒是python 变量赋值有点特别
 
a b = 1, 2 要注意空格

 

 

 

  以下是用c实现的，以表示我对开发语言了解广泛。

 

#include <stdio.h>


int main (int argc, const char * argv[]) {
     
     int numToPrint, i;
     double num1, num2, ans;
     
     num1 = 0;
     num2 = 1;
     
     printf("How many numbers would you like to print?\t");
     scanf("%d", &numToPrint);
     
     printf("1\t%.0f\n2\t%.0lf\n", num1, num2);
     
     for(i = 0; i < (numToPrint - 2); ++i){
          
          ans = (num1 + num2);
          
          printf("%d\t%.0lf\n", i+3, ans);
          
          num1 = num2;
          num2 = ans;
     }
     
     
    return 0;
}