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[i] )
print( "SM=",SM)
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)