6.循环
1.while循环
counter = 1 while counter <=10 : counter +=1 print(counter) else: print('EOF')
2.for循环
# a = ['apple','orange','banana','grape'] # for x in a: # print(x) a = [['apple','orange','banana','grape'],(1,2,3)] for x in a: for y in x: if y == 'orange': break print(y,end=' ') # print(y,end='\n') else: print('fruit is gone') # a = [1,2,3] # for x in a: # if x == 2: # break # # continue # print(x) # else: # print('EOF')
# for x in range(0,10): # print(x) # for x in range(0,10,2): # print(x,end=' | ') # for x in range(10,0,-2): # print(x,end=' | ') a = [1,2,3,4,5,6,7,8] # for i in range(0,len(a),2): # print(a[i],end=' | ') b = a[0:len(a):2] print(b)