逻辑语句
if ... else ...
if 条件语句: 满足条件,执行语句 else: 不满足条件,执行语句
if ... elif ... else
if 条件语句: 满足条件,执行语句 elif 条件语句: 满足执行 else 上面条件皆不满足,执行该语句
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1 while 条件: 2 循环体 3 4 5 count = 1 6 flag = True 7 sum = 0 8 9 while flag: 10 print(count) 11 count += 1 12 sum += count 13 if count==100 14 flage=False 15 16