class Solution:
def myAtoi(self, str: str) -> int:
symbol = ""
rlt = ""
str = str.lstrip()
if not str:
return 0
if str[0] == "-":
symbol = "-"
str = str[1:]
elif str[0] == "+":
str = str[1:]
for i in str:
if i.isdigit():
rlt += i
else:
break
try:
rlt = symbol + rlt
int_rlt = int(rlt)
if int_rlt < -2**31:
int_rlt = -2**31
elif int_rlt > 2**31-1:
int_rlt = 2**31-1
return int_rlt
except Exception:
return 0
8,字符串转换整数(atoi)
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转载自blog.csdn.net/weixin_42758299/article/details/88533008
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