【循环镶嵌】

# '''相亲约会''' # boys = ['boys1','boys2','boys3'] # girls = ['girls1','girls2','girls3'] # for boy in boys: #     for girl in girls: #         print('%s shakes %s'% (boy,girl)) # '''九九乘法表''' # for i in range(1,10): #     for j in range(1,i+1): #         print('{}X{}={} '.format(j,i,i*j), end='  ') #     print()

【列表生成式】

beforetax = [10000,15000,8000,4000,5000] '''method-1''' # aftertax = [int(one*0.9) for one in beforetax] '''method-2''' # aftertax = [] # for one in beforetax: #     aftertax.append(int(one*0.9)) '''加判断符号''' aftertax = [int(one*0.9) for one in beforetax if one>=10000] print(aftertax)

【排序算法】

'''升序降序'''#sort alist = [8,2,6,0] # alist.sort()#升序 # alist.sort(reverse=True)#降序 # print(alist) '''冒泡''' def mysort(inlist):     for i in range(len(inlist)-1):         for j in range(0,len(inlist)-1-i):             if inlist[j]>inlist[j+1]:                 inlist[j],inlist[j+1] = inlist[j+1],inlist[j]     return inlist print(mysort(alist))