C语言结构体初始化的四种方法

struct InitMember
{
    int first；
    double second；
    char* third；
    float four;
};
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struct InitMember test = {-10,3.141590，"method one"，0.25}；
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struct InitMember test；

test.first = -10;
test.second = 3.141590;
test.third = "method two";
test.four = 0.25;​
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struct InitMember test = {
    .second = 3.141590,
    .third = "method three",
    .first = -10,
    .four = 0.25
};
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struct InitMember test = {
    second：3.141590,
    third："method three",
    first：-10,
    four：0.25
};
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