whats wrong with my code, i want it so if the string you input is 33*10= it outputs the correct answer, but it outputs 0.0 in this case and if the string was 33+10 it would output 44whats wrong with my code, i want it so if the s
阅读背景：
如何在字符串中添加另一个？
来源：互联网
分享到：
