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python
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python 反斜杠与直接显示原始字符串print("nihao\nhaode")
print(r"nihao\nhaode")
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python
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python 经典联系:求1-100的和n = 100
sum = 0
counter = 1
while counter <= n :
sum = sum + counter
counter += 1
print("1到100的和为:%d"%(sum))
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python
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python 字符串的转义a = "nihao \"nihao" #讲中间双引号转义输出print(a)
b = """ nihao haode"""print(b) #三引号输出引号内所有字符串包括空格
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python
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python数组数据的修改name = ["A","B","C"]
name[1]="D" #指定数据下表修改
print(name)
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python
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python input输出password=(input("你的密码是:"))
print("你的密码是:",password)
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python
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python 切片a = "wuhan"print(a[0:3:1]) #起始位置:结束位置:跨境值 0下标开始