python字符串与数字的转化
字符串转化为数字#coding=gbk
#字符串转化为实数
def strtonum( s , defaultValue=0):
try:
f = float( s )
except:
f = defaultValue
return f
#字符串转化为整数
def strtoint( s , defaultValue=0):
try:
f = int( s )
except:
f = defaultValue
return f
A = [ "123","456","8812.90","1.2345E-6","-9.1E1" ];
SM = 0
for i in range(0,len(A)):
SM = SM + strtonum( A )
print( "SM=",SM)
python字符串与数字的转化2008-04-29 21:13
数字变为字符串 str（） 字符串变为数字 string.atoi（s,[，base]) //base为进制基数
浮点数转换 string.atof(s)
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