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打开网址：https://turtle.编程 #在Python中运行下面程序，观察对比使用continue和break的不同效果。 #1 、改正以下程序的错误 num=0 for i in range(1,5): print(“进入第”，i,“次循环i=”,i） if i==3: break num=num+1 print(“num=”,num) 修改后： num=0 for i in range(1,5): print("进入第",i,"次循环i=",i) if i==3: break num=num+1 print("num=",num) #运行结果： 进入第 1 次循环i= 1 num= 1 进入第 2 次循环i= 2 num= 2 进入第 3 次循环i= 3 #2、改正以下程序的错误 num=0 for i in range(1,5): print(“进入第”，i,“次循环i=”,i） if i==3: continue num=num+1 print(“num=”,num) #修改后： num=0 for i in range(1,5): print("进入第",i,"次循环i=",i) if i==3: continue num=num+1 print("num=",num) #运行结果： 进入第 1 次循环i= 1 num= 1 进入第 2 次循环i= 2 num= 2 进入第 3 次循环i= 3 进入第 4 次循环i= 4 num= 3 #3、猜成语。"精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲","莺歌燕舞","鸦雀无声","龙飞凤舞","南辕北辙","舍近求远","宠辱不惊","厚古薄今","高瞻远瞩","神采奕奕","瓜田李下","山清水秀","张灯结彩","豁然开朗","肃然起敬","嫣然一笑","东施效颦","囫囵吞枣","杞人忧天","惊弓之鸟","买椟还珠" #第一步，读入程序列表，先随机显示10条成语。 import random sc=["精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲","莺歌燕舞","鸦雀无声","龙飞凤舞","南辕北辙","舍近求远","宠辱不惊","厚古薄今","高瞻远瞩","神采奕奕","瓜田李下","山清水秀","张灯结彩","豁然开朗","肃然起敬","嫣然一笑","东施效颦","囫囵吞枣","杞人忧天","惊弓之鸟","买椟还珠"] for i in range(10): scword=random.choice(sc) print(scword) #运行结果如下： 鸦雀无声 瓜田李下 如雷贯耳 莺歌燕舞 瓜田李下 兔死狐悲 张灯结彩 鸦雀无声 肃然起敬 肃然起敬 #第二步，随机选取成语的一个字，改为下划线 import random sc=["精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲"," for i in range(10): scword=random.choice(sc) scword1=random.choice(scword) scword2=scword.replace(scword1,"_") print(scword2) #运行结果如下： 口_悬河 舍_求远 神采__ 千钧一_ 高瞻远_ 繁_似锦 垂_三尺 繁花似_ 瓜田李_ _然一笑 #第三步，用键盘输入一个字，进行判断，如果猜对显示“正确”，否则显示“错误” import random sc=["精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲","莺歌燕舞","鸦雀无声","龙飞凤舞","南辕北辙","舍近求远","宠辱不惊","厚古薄今","高瞻远瞩","神采奕奕","瓜田李下","山清水秀","张灯结彩","豁然开朗","肃然起敬","嫣然一笑","东施效颦","囫囵吞枣","杞人忧天","惊弓之鸟","买椟还珠"] for i in range(10): scword=random.choice(sc) scword1=random.choice(scword) scword2=scword.replace(scword1,"_") print(scword2) answ=input("请输入：") if not answ: print("过") else: if answ==scword1: print("正确，你真捧！") else: print("错了") #运行结果如下： 神采__ 错了 _花似锦 正确，你真捧！ 豁然开_ 正确，你真捧！ _近求远 正确，你真捧！ 厚古薄_ 错了 嫣_一笑 过 如雷贯_ 过 鸦雀无_ 正确，你真捧！ 舍近求_ 正确，你真捧！ _采奕奕 正确，你真捧！ #第四步，每做对一道题加10分,最后打印总分 import random sc=["精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲","莺歌燕舞","鸦雀无声","龙飞凤舞","南辕北辙","舍近求远","宠辱不惊","厚古薄今","高瞻远瞩","神采奕奕","瓜田李下","山清水秀","张灯结彩","豁然开朗","肃然起敬","嫣然一笑","东施效颦","囫囵吞枣","杞人忧天","惊弓之鸟","买椟还珠"] score=0 for i in range(10): scword=random.choice(sc) scword1=random.choice(scword) scword2=scword.replace(scword1,"_") print(scword2) answ=input("请输入：") if not answ: print("过") else: if answ==scword1: print("正确，你真捧！加10分") score=score+10 else: print("错了") print("您最后得分：",score) #运行结果如下： _花似锦 正确，你真捧！加10分 舍近求_ 正确，你真捧！加10分 _施效颦 错了 繁花似_ 过 瓜_李下 正确，你真捧！加10分 _花似锦 错了 囫囵_枣 正确，你真捧！加10分 兔死狐_ 正确，你真捧！加10分 肃然起_ 正确，你真捧！加10分 兔_狐悲 正确，你真捧！加10分 您最后得分：70 #第五步，用while循环改写 import random sc=["精益求精","如雷贯耳","口若悬河","繁花似锦","垂涎三尺","千钧一发","兔死狐悲","莺歌燕舞","鸦雀无声","龙飞凤舞","南辕北辙","舍近求远","宠辱不惊","厚古薄今","高瞻远瞩","神采奕奕","瓜田李下","山清水秀","张灯结彩","豁然开朗","肃然起敬","嫣然一笑","东施效颦","囫囵吞枣","杞人忧天","惊弓之鸟","买椟还珠"] score=0 i=0 while i <=10: scword=random.choice(sc) scword1=random.choice(scword) scword2=scword.replace(scword1,"_") print(scword2) answ=input("请输入：") if not answ: print("过") else: if answ==scword1: print("正确，你真捧！加10分") score=score+10 else: print("错了") i+=1 print("您最后得分：",score) |
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